Little Board/486i Technical Manual P/N: 5000941 Revision: E Ampro Computers, Incorporated 4757 Hellyer Avenue ! San Jose, CA 95138 Tel (408) 360-0200 ! FAX (408) 360-0220 WEBSITE: www.ampro.
WARNING The Female PC/104 Bus Headers supplied on this Third Generation Little Board CPU are not compatible with backplanes and cable adapters intended for use with First and Second Generation Little Boards. Damage to the Little Board will occur if used with these components. Use only Bus Expansion components intended for use with Third Generation products.
NOTICE DISCLAIMER Ampro Computers, Incorporated makes no representations or warranties with respect to the contents of this manual or of the associated Ampro products, and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Ampro shall under no circumstances be liable for incidental or consequential damages or related expenses resulting from the use of this product, even if it has been notified of the possibility of such damages.
Little Board/486i Technical Manual PREFACE This manual is for integrators and programmers of systems based on the Ampro Little Board™/486i single board system. It contains information about hardware specifications, jumpering and installation, details about system setup, and how to configure peripheral drivers. There are three chapters and an Appendix, organized as follows: ! Chapter 1—Introduction. General information pertaining to the Little Board/486i, its features, and specifications.
TABLE OF CONTENTS CHAPTER 1—INTRODUCTION 1.1 General Description ............................................................................................................... 1–1 1.2 Features ................................................................................................................................. 1–1 1.2.1 Enhanced Reliability .............................................................................................. 1–3 1.3 Little Board/486i Specifications .....................
Little Board/486i Technical Manual 2.11 Byte-wide Sockets................................................................................................................ 2–23 2.11.1 Addressing the Byte-wide Sockets........................................................................ 2–25 2.11.2 Direct Program Access ......................................................................................... 2–25 2.11.3 Solid State Disk (SSD) Drives...........................................................
3.4.6 Hot Key Setup Enable ............................................................................................ 3–7 3.4.7 Video State ............................................................................................................ 3–7 3.4.8 POST Test Display ................................................................................................ 3–8 3.4.9 Byte-wide Socket Configuration............................................................................. 3–8 3.4.
Little Board/486i Technical Manual 3.19 System I/O Map ................................................................................................................... 3–39 3.20 Utility Software Overview.................................................................................................... 3–41 APPENDIX A—FLAT PANEL CABLES 4.1 4.2 4.3 4.4 4.5 4.6 SHARP LM64P839 PASSIVE MONOCHROME LCD PANEL.............................................. 4–2 SHARP LJ64ZU51 GRAY SCALE ELECTROLUMINESCENT .....
Table 2-10 Parallel Port Connector (J15) ..................................................................................... 2–16 Table 2-11 J6 Mating Connector .................................................................................................. 2–16 Table 2-12 Supported Floppy Formats ......................................................................................... 2–17 Table 2-13 Floppy Disk Interface Connector (J14) .................................................................
Little Board/486i Technical Manual x
CHAPTER 1 INTRODUCTION 1.1 GENERAL DESCRIPTION The Little Board/486i is an exceptionally high integration, high performance 486DX-based PC/AT compatible system in the footprint of a 5 1/4 inch disk drive. This rugged and high quality single-board system contains all the component subsystems of a PC/AT motherboard plus the equivalent of six PC/AT expansion boards.
Little Board/486i Technical Manual ! Serial loader option—supports loading boot code from an external serial source ! EEPROM access function—512 bits of EEPROM storage available to user; useful for serialization, copy protection, security, etc.
Introduction CGA, and MDA. Resolutions up to 1280 x 1024 pixels and up to 16 million colors are supported (refer to Tables 1–2 through 1–7 for video specifications). The display controller features: ! High-speed Local Bus Architecture. between the CPU and video memory. ! Graphical User Interface (GUI) Accelerator. Can dramatically boost the performance of Windows® and many other graphics-intensive applications. ! Color Flat Panel Support.
Little Board/486i Technical Manual ISO 9001 Manufacturing. Ampro is a certified ISO 9001 vendor. EMC testing. Knowing that many embedded systems must qualify under regulatory compliance testing, Ampro designs boards with careful attention to EMI issues. Boards are tested in standard enclosures to ensure that they can pass C E mark testing. Wide-range temperature testing. Ampro engineering qualifies its designs by extensive thermal and voltage margin testing. 3.3V CPU for greater high temperature tolerance.
Introduction ! ! ! − Onboard programming of 5 V and 12 V Flash EPROMs − Onboard +12 Volt power supply for Flash EPROM programming − Configurable as 64K or 128K byte window, addressed in the range of D0000h to EFFFFh − Supports PCMCIA memory card connection via Ampro Memory Card Adapter − Supported by Ampro SSD Support Software and many third-party operating systems 2K-bit configuration EEPROM: − Stores system SETUP parameters − Supports battery-free boot capability − 512 bits available fo
Little Board/486i Technical Manual ! ! ! 1–6 SCSI-II Interface − ANSI X3.
Introduction − I/O base address options: 300h, 320h, 360h, or 380h − Interrupt options: IRQ3, IRQ9 (default), IRQ10, IRQ11 − DMA: not used − Boot ROM image can be installed in system using a Flash programming utility (provided) 1.3.
Little Board/486i Technical Manual ! Operating environment: − Standard: 0° to 70° C (with adequate airflow); Extended temperature range can be tested by special order − 5 to 95% relative humidity (non-condensing) ! Storage temperature: -55° to +85° C ! Weight: 10.1 oz.
Introduction Flat Panel Displays The Little Board/486i display controller supports all flat panel display technologies including plasma, electroluminescent (EL), and LCD. LCD panel types include single panel-single drive (SS), and dual panel-dual drive (DD) configurations. The following table lists the flat panel displays supported by the Little Board/486i ROM BIOS. You can also install a custom video BIOS in the board's Flash EPROM to support a panel not on this list.
Little Board/486i Technical Manual Resolution CRT Colors Mono LCD Gray Scales DD STN LCD Colors 9-bit TFT LCD Color Video Memory Simultaneous Display? 320 x 200 256/256K 61/61 256/226,981 256/185,193 512K Yes 640 x 480 16/256K 16/61 16/226,981 16/185,193 512K Yes 640 x 480 256/256K 61/61 256/226,981 256/185,193 512K Yes 800 x 600 16/256K 16/61 16/226,981 16/185,193 512K Requires 1M 800 x 600 256/256K 61/61 256/226,981 256/185,193 512K Requires 1M 1024 x 768 16/256
Introduction Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) 0+, 1+ Text 16 40x25 9x16 360x400 28.322 31.5 70 40x25 8x14 320x350 25.175 40x25 8x8 320x200 25.175 80x25 9x16 720x400 28.322 31.5 70 80x25 8x14 640x350 25.175 80x25 8x8 640x200 25.175 2+, 3+ Text 16 4 Graphics 4 40x25 8x8 320x200 25.175 31.5 70 5 Graphics 4 40x25 8x8 320x200 25.175 31.5 70 6 Graphics 2 80x25 8x8 640x200 25.175 31.
Little Board/486i Technical Manual Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) Mem ory CRT* 20 4-bit Linear 16 80x30 8x16 640x480 25.175 31.5 60 512K a, b, c 22 4-bit Linear 16 100x37 8x16 800x600 40.000 37.5 60 512K b,c 24 4-bit Linear 16 128x48 8x16 1024x768 65.000 48.5 60 512K c 44.900 35.5 43 512K b,c 24I 30 8-bit Linear 256 80x30 8x16 640x480 25.175 31.
Introduction Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) Mem ory CRT* 12** Planar 16 80x30 8x16 640x480 31.500 37.5 75 256K b, c 30 8-bit Linear 256 80x30 8x16 640x480 31.500 37.5 75 256K c 79 Packed Pixel 256 80x30 8x16 640x480 31.500 37.5 75 512K c 6A,70 Planar 16 100x37 8x16 800x600 49.500 46.9 75 512K c 32 8-bit Linear 256 100x37 8x16 800x600 49.500 46.
1–14 Figure 1-1 Mechanical Dimensions 5.150 5.250 5.350 4.950 P1B P1A .125 HOLE 2.800 J6 FLAT PANEL VIDEO Vee SUPPLY OPTION P2C P2D 1 J15 J13 J11 1 J14 J9 1 1 1 J10 .125 HOLES, .250 PADS (8 Places) 1 1 1 1 7.100 3.370 J5 J4 .450 1 1 U2 J8 J16 J12 7.600 7.500 1.875 1.975 2.000 0 J3 1 6.350 .900 .200 1 J7 6.800 .400 U1 5.350 4.150 3.950 3.000 2.400 1.550 1.000 .400 0 .100 SIMM Height (Varies) 0 .200 Little Board/486i Technical Manual 0 .162 .
CHAPTER 2 HARDWARE CONFIGURATION 2.1 INTRODUCTION This chapter covers configuring the Little Board/486i and using on-board and peripheral devices.
Hardware Configuration Connector Function Size Key Pin P1A/B PC/104 Expansion Bus 64-Pin B10 P2C/D PC/104 Expansion Bus 40-pin C19 J1-J2 Designations not used N/A N/A J3 Flat Panel Video 50-pin 35 J4 LCD Bias Supply Connector 12-pin None J5 CRT Video 10-pin None J6 Video External Overlay 60-pin .050 in.
Hardware Configuration (Shaded connector pins indicate key pins.
Hardware Configuration Connectors The I/O connectors are shrouded dual-row headers for use with flat ribbon (IDC) connectors and ribbon cable. Ampro recommends that you use “center-bump polarized” connectors to prevent accidentally installing cables backwards. Use non-strain-relief connectors to stay within the vertical height envelope shown in Figure 1–1. Many of the connectors have “key pins”. Install a blocking key in the corresponding connector socket on the mating ribbon cable to prevent misalignment.
Hardware Configuration Jumper Group Function Default W1 Video Controller Enable ON W2 Byte-wide S0 Battery Back-up Power OFF W3 SCSI Termination Power OFF W4 Serial 3 IRQ Select (IRQ4, IRQ12) 2/3 (IRQ12) W5 Serial 4 IRQ Select (IRQ3, IRQ10) 2/3 (IRQ10) W6 Serial 1 IRQ4 Sharing Pull-down ON W7 Serial 2 IRQ3 Sharing Pull-down ON W8 +5V Supply for External RS-485 Interface (Serial 4) OFF W9 BIOS Programming Disable ON W10 Write-back Cache Enable 1/2 (enabled) W11 Watchdog Tim
Hardware Configuration 2.2 DC POWER The pinout of the power connector J10 is identical with the power connectors on 5-1/4 inch floppy disk drives. Refer to Table 2-3 for power connections, Table 2-4 for mating connector information, and Figure 2-2 for typical connector wiring. Caution Be sure the power plug is wired correctly before applying power to the board! See Figure 2-2.
Hardware Configuration programming Flash EPROMs. (There may be a requirement for an external +12 volt supply, depending on what peripherals you connect to the Little Board system. For instance, +12V is required for most flat panel backlight power supplies and for an external Ethernet LAN MAU device connected to the Ethernet controller AUI interface.
Hardware Configuration (To connect the on-board battery to byte-wide socket S0 to back up an SRAM, install jumpers on W2 and W21-1/2. If you use another type of memory device in S0, you must remove W2 and install a jumper on W21-2/3. ) Here is the formula for calculating battery life (in hours): Battery life = (165 milliamp-hours ÷ (1 uA + SRAM backup current)) × Duty Cycle If the memory device you select draws too much current from the onboard battery, you can add an external 3.
Hardware Configuration Figure 2-3 Write-Back Cache Configuration (W10) 2.4 DRAM The board has positions for two 72-pin Single In-line Memory Modules (SIMMs), U1 and U2. 72-pin SIMMs are organized as a 32-bit data bus, so you can use either one or two modules, depending on your memory needs. 72-pin SIMMs come in 1M byte, 4M byte, 8M byte, 16M byte, and 32M byte versions. Any mix of SIMMs can be accommodated. The ROM BIOS automatically detects the memory modules that are installed and configures accordingly.
Hardware Configuration Note If you change the amount of memory installed, you must run SETUP again to save the new value in the Configuration Memory. 2.4.1 Shadowing One way to improve system performance is to “shadow” the ROM BIOS and video BIOS. When the system operates directly from ROM code, it accesses an 8-bit memory device. When the ROM contents are shadowed, the contents are copied into system DRAM where they are accessed as 32-bit wide data.
Hardware Configuration Port I/O Address Interrupt Serial 1 3F8h - 3FFh 4 Serial 2 2F8h - 2FFh 3 Serial 3 3E8h - 3EFh 4 or 12 Serial 4 2E8h - 2EFh 3 or 10 Table 2-6 Serial Port I/O Addresses and Interrupts 2.6.2 Interrupt Assignments As shown in Table 2-6, interrupt 4 (IRQ4) is assigned to Serial 1 and Interrupt 3 (IRQ3) to Serial 2. These assignments can be disabled, but they cannot be changed.
Hardware Configuration serial port and searching to the last one, Serial 4. Thus, for example, if Serial 1 and Serial 3 are disabled, the ROM-BIOS assigns COM1 to Serial 2 and COM2 to Serial 4. . 2.6.4 Serial Port Connectors (J11, J13) Serial 1 and Serial 2 appear on connector J11; Serial 3 and Serial 4 appear on connector J13. Table 27 gives the connector pinout and signal definitions for J11 and J13. Both connectors are wired the same, J11 for serial 1 and 2, and J13 for serial 3 and 4.
Hardware Configuration Connector Type RIBBON DISCRETE WIRE Mating Connector 3M 3421-7600 MOLEX HOUSING 22-55-2202 PIN 16-02-0103 Table 2-8 J11 and J13 Mating Connector 2.6.5 Serial Console Unique to Ampro is ROM BIOS support for using a serial console (keyboard and display) in place of the conventional video controller, monitor, and keyboard. See Chapter 3 for an explanation of the serial console option. 2.6.
Hardware Configuration Selection I/O Address Primary 378h - 37Fh Secondary 278h - 27Fh Disable None Table 2-9 Parallel Printer Port Address Configuration For details about the parallel port I/O addresses and the data, status, control, EPP, and ECP port bit definitions, refer to the parallel port section in Chapter 3. 2.7.2 ROM-BIOS Installation of Parallel Ports Normally, the BIOS assigns the name LPT1 to the primary parallel port, and LPT2 to the secondary parallel port (if present), and so on.
Hardware Configuration Figure 2-7 Parallel Port DMA Selection (W18, W19) If you will not be using DMA with the parallel port, leave the jumpers off. This makes the DMA controls available to other peripherals installed on the expansion bus. 2.7.5 Parallel Port Connector (J15) Connection to the parallel port is through connector J15. Table 2-10 gives this connector’s pinout and signal definitions. You can use a flat ribbon cable between J15 and a female DB25 connector.
Hardware Configuration J15 Pin Signal Name Function In/Out DB25 Pin 1 -STROBE Output data strobe OUT 1 3 Data 0 LSB of printer data I/O 2 5 Data 1 I/O 3 7 Data 2 I/O 4 9 Data 3 I/O 5 11 Data 4 I/O 6 13 Data 5 I/O 7 15 Data 6 I/O 8 17 Data 7 MSB of printer data I/O 9 19 -ACK Character accepted IN 10 21 BUSY Cannot receive data IN 11 23 PAPER OUT Out of paper IN 12 25 SEL OUT Printer selected IN 13 2 -AUTOFD Autofeed OUT 14 4 ERROR Printe
Hardware Configuration Note For maximum reliability, keep the cable between the board and the device it drives to 10 feet or less in length. The parallel port incorporates chip protection circuitry on some inputs, designed to minimize the possibility of CMOS “latch up” due to printer or other peripheral being powered up while the Little Board/486i is turned off. 2.
Hardware Configuration ! Drive Mounting—If you mount a floppy drive very close to the Little Board or another source of EMI, you may need to place a thin metal shield between the disk drive and the device to reduce the possibility of electromagnetic interference. 2.8.2 Floppy Interface Configuration The floppy interface is configured using SETUP to set the number and type of floppy drives connected to the system. Refer to the SETUP section in Chapter 3 for details.
Hardware Configuration Connector Type RIBBON DISCRETE WIRE Mating Connector 3M 3414-7600 MOLEX HOUSING 22-55-2342 PIN 16-02-0103 Table 2-14 J14 Mating Connector 2.9 IDE HARD DISK INTERFACE (J12) The Little Board/486i provides an interface for one or two Integrated Device Electronics (IDE) hard disk drives. IDE drives, the most popular and cost-effective type of hard drive currently available, have a standard PC hard disk controller.
Hardware Configuration Pin Signal Name Function In/Out 1 -HOST RESET Reset signal from host OUT 2 GND Ground OUT 3 HOST D7 Data bit 7 I/O 4 HOST D8 Data bit 8 I/O 5 HOST D6 Data bit 6 I/O 6 HOST D9 Data bit 9 I/O 7 HOST D5 Data bit 5 I/O 8 HOST D10 Data bit 10 I/O 9 HOST D4 Data bit 4 I/O 10 HOST D11 Data bit 11 I/O 11 HOST D3 Data bit 3 I/O 12 HOST D12 Data bit 12 I/O 13 HOST D2 Data bit 2 I/O 14 HOST D13 Data bit 13 I/O 15 HOST D1 Data bit 1
Hardware Configuration Pin Signal Name Function In/Out 32 RSVD Reserved N/C 33 HOST A1 Drive address 1 OUT 34 RSVD Reserved N/C 35 HOST AD0 Drive address 0 OUT 36 HOST AD2 Drive address 2 OUT 37 -HOST CS0 Chip select OUT 38 -HOST CS1 Chip select OUT 39 -HOST SLV/ACT Drive active/drive slave 10K Pull-up 40 GND Ground OUT Table 2-15 IDE Drive Interface Connector (J12) (cont.
Hardware Configuration Pin Signal Function 2 -DB0 Data Bit 0 (LSB 4 -DB1 Data Bit 1 6 -DB2 Data Bit 2 8 -DB3 Data Bit 3 10 -DB4 Data Bit 4 12 -DB5 Data Bit 5 14 -DB6 Data Bit 6 16 - DB7 Data Bit 7 18 -DBP Data Parity 26 TERM PWR Termination +5VDC 32 -ATN Attention 34 GROUND Signal Ground 36 -BSY Busy 38 -ACK Transfer Acknowledge 40 -RST Reset 42 -MSG Message 44 -SEL Select 46 -C/D Control/Data 48 -REQ Transfer Request 50 -I/O Data direction 25
Hardware Configuration be re-mapped to 140h-15Fh by installing a shunt on W24. The SCSI BIOS extensions of the ROM BIOS do not support the alternate I/O address range. Interrupt Request Assignment The SCSI interface, supported by the SCSI BIOS extensions of the ROM BIOS does not use an interrupt. However, some operating systems, such as OS/2 and Windows95, and Adaptec ASPI drivers require IRQ11. This is the default assignment, implemented on jumper W12.
Hardware Configuration (NOVRAM) devices. Battery backup power can be connected to S0 using a jumper option to make an SRAM “non-volatile.” You can use devices installed in the byte-wide sockets for a variety of purposes: ! Simple program storage ! BIOS extensions ! Solid State Disk (SSD) drives Table 2-19 shows some representative byte-wide memory devices that can be installed in the byte-wide sockets.
Hardware Configuration Figure 2-8 Using 28- and 32- pin Devices in 32-pin Sockets 2.11.1 Addressing the Byte-wide Sockets Use the CPU SETUP program to specify the size and starting address of each socket, and which socket the BIOS enables upon system initialization. Table 2-20 lists the possible settings for sizes and address ranges of the byte-wide sockets.
Hardware Configuration If devices larger than 64K bytes are installed, you must select which page is visible in the address window assigned to the device. If the size is set to 64K bytes, a page is 64K bytes. If the size is set to 128K bytes, a page is 128K bytes. The Ampro Extended BIOS provides convenient software calls to manage enabling/disabling the sockets and selecting pages. Refer to Chapter 3 for details about the byte-wide extended ROM-BIOS calls.
Hardware Configuration to install jumpers for supported memory devices. Table 3-12 describes the byte-wide socket signals that correspond to each jumper pin. 2.11.5 Using EPROMs If you install an EPROM in socket S0, make sure the jumper on W2 is removed and the jumper on W21 is on 2/3 to prevent premature discharge of the on-board backup battery. Some EPROMs draw current through their chip select lines (or other pins) when powered down.
Hardware Configuration EPROM (Typical Devices) Pins 8K EPROM 27C64 16K EPROM 27C128 8K EEPROM 28C64 28 32K EPROM 27C256 28 64K EPROM 27C512 28 128K EPROM 27C010 32 256K EPROM 27C020 32 512K EPROM 27C040 32 1M EPROM 32 27C080 Jumper Diagram NOTE: W2 and W21 configure S0 only.
Hardware Configuration 2.11.6 Using Flash EPROMs Flash programming power for +12V Flash devices is provided by an on-board power supply. You do not need to connect an external +12V power supply to program Flash devices. Programming power is switched under software control so that it is applied only during the actual programming process (to prevent accidental corruption of the data).
Hardware Configuration The external battery power is combined with the internal battery using low forward voltage drop Schottky diodes. The 165 milliamp-hour battery provides sufficient current for the onboard real-time clock for a 10 year life, but if you are going to battery-back-up a device in S0, Ampro recommends a larger battery, connected through the utility connector. Note Some byte-wide devices draw battery backup current through their chip select lines when power is off.
Hardware Configuration Name Connector Pins/Type Flat Panel J3 LCD Bias Supply Option J4 CRT J5 External Video Overlay J6 Description 50-pin Shrouded .100 Header Provides connections for a broad array of standard flat panel displays. Intended for standard 50-wire ribbon cable. 12-pin Shrouded .100 Header Ampro provides a small add-on board that will supply the Vee voltage for most common LCD flat panel displays. It mounts to this connector.
Hardware Configuration J5 Pin Signal Name DB-15 DB-9 1 Red 1 1 2 Ground 6 6 3 Green 2 2 4 Ground 7 7 5 Blue 3 3 6 Ground 8 8 7 Horizontal Sync. 13 4 8 Ground 10 9 9 Vertical Sync. 14 5 10 Ground 4, 5, 9, 11, 12, 15 - Table 2-22 CRT Interface Connector (J5) Connector Type RIBBON DISCRETE WIRE Mating Connector 3M 3473-7600 MOLEX HOUSING 22-55-2102 PIN 16-02-0103 Table 2-23 J5 Mating Connectors 2.12.
Hardware Configuration The following table lists the signals available on connector J3. J3 Pin Signal Name 2, 34, 37 +5V +5 Volt supply from Little Board/486i 3 +12V +12 Volt supply (from J10) 5 ShfClk 7 M M signal for panel AC drive control. Sometimes called ACDCLK or AC Drive. May also be configured to be -BLANK or as Display Enable (DE) for TFT panels. 9 LP Latch Pulse. Sometimes called Load Clock, Line Load, or Input Data Latch. It’s the flat panel equivalent of HSYNC. Active high.
Hardware Configuration Connector Type RIBBON DISCRETE WIRE Mating Connector 3M 4325-7600 MOLEX HOUSING 22-55-2502 PIN 16-02-0103 Table 2-25 J3 Mating Connectors Flat Panel Shift Clock Polarity Some flat panels require an inverted shift clock. A jumper, W23 is provided for this purpose. Set the jumper block on W23 as shown in the following diagram.
Hardware Configuration 2.12.3 The LCD Bias Supply Option The LCD Bias Supply Option is a small circuit board that supplies Vee power to an LCD display. The board converts the +5V from the Little Board/486i to the Vee voltage (between 15V and 35V) required by most LCD panels, and makes this voltage available on the flat panel connector J3.
Hardware Configuration Figure 2-13 Vee Polarity Selection Jumper Note Incorrect Vee polarity or voltage can damage an LCD panel. Set the polarity and voltage on the Vee supply before connecting the LCD panel. Attaching an External Contrast Control Vee controls the contrast of the LCD display. (Do not confuse this with a backlight, which illuminates the screen using one or more fluorescent tubes. Backlights generally require a high voltage AC supply.
Hardware Configuration Example: Suppose the following values are shown in the panel’s data sheet: Vee max = 24 V Vee min = 20 V Calculate the required resistor values as follows: Ra = (270 / ((24 / 1.5) - 1)) -12 Ra = 6K Ω Rb = (270 / ((20 / 1.5) - 1)) -12 - 6 Rb = 3.9K Ω 2.12.4 External Video Overlay Connector (J6) This section describes the External Video Overlay Connector (J6). The interface at this connector is used to overlay externally-generated RGB video over the internal VGA data stream.
Hardware Configuration J6 Pin Name Function 19 VSYNC Vertical Sync (output) 21 HSYNC Horizontal Sync (output) 29 PCLK Pixel Clock (output) 31 KEY Color Key (Input) 33 PCVR2 Video Data 0 (Input) 34 PCVR3 Video Data 1 (Input) 36 PCVR4 Video Data 2 (Input) 37 PCVR5 Video Data 3 (Input) 57 PCVR6 Video Data 4 (Input) 58 PCVR7 Video Data 5 (Input) 39 PCVG2 Video Data 6 (Input) 40 PCVG3 Video Data 7 (Input) 42 PCVG4 Video Data 8 (Input) 43 PCVG5 Video Data 9 (Input) 45
Hardware Configuration Table 2-28 J6 Mating Connector 2.13 ETHERNET NETWORK INTERFACE This section describes how to configure and connect the Ethernet LAN interface. There are no jumpers to set on the Ethernet interface, and no hardware configuration, other than connecting the network cable to an appropriate connector. Software configuration of the Ethernet interface includes the following steps (mentioned briefly here, and covered in detail in Chapter 3): ! In SETUP, enable the Ethernet interface.
Hardware Configuration ! In SETUP, enable the expansion BIOS ROM at CC000h. (If you do not use a boot PROM, this option should be disabled.) ! Remove W9 and install W13. ! Program the PROM with your boot PROM code using a utility called PGMIBIOS.COM, supplied by Ampro on the utility disk that comes with the Little Board/486i Development Kit. ! Enable “Boot from Floppy” in SETUP. (SETUP is described in Chapter 3.) 2.13.
Hardware Configuration Note This is the only Little Board/486i interface that requires an external +12V supply. If you use the AUI interface, you must select it in SETUP. You cannot use the RJ45 interface and the AUI interfaces simultaneously.
Hardware Configuration 2.14 BATTERY-BACKED CLOCK An AT-compatible battery-backed real-time clock (with CMOS RAM) is standard on the Little Board/486i. The clock is powered by a 3.6 volt Lithium battery soldered to the board. Battery drain for the clock is less than 1 uA. This battery will support the clock for about 10 years. (This assumes that the battery is not also used to supply backup power to SRAM devices in the byte-wide sockets.
Hardware Configuration ! Security key switch ! Keyboard interface ! External back-up battery Table 2-32 shows the pinout and signal definitions of the Utility Connector. Since there are connections for diverse features on this single connector, you would usually choose a discrete-wire connector rather than a ribbon cable connector, though this is not a requirement. Table 2-33 shows manufacturer’s part numbers for both types of mating connectors.
Hardware Configuration 2.16.1 LED Connection To connect an external LED power-on indication lamp, connect the LED anode (-) to J16-5 and the cathode (+) to ground. J16-5 provides +5V through a 300 ohm resistor. 2.16.2 Speaker Connections The board supplies about 100 milliwatts for a speaker on J16-7. Connect the other side of the speaker to ground (J16-8). A transistor amplifier buffers the speaker signal. Use a small general purpose 2 or 3 inch permanent magnet speaker with an 8 ohm voice coil.
Hardware Configuration 2.17 AT EXPANSION BUS The PC/AT expansion bus appears on a pair of header connectors at P1 and P2. P1 is a 64-pin female dual-row header. P2 is a 40-pin female dual-row header. The PC-bus subset of the expansion bus connects to the first 62 positions of P1; the two additional positions of P1 (A32 and B32) are added grounds to enhance system reliability. Connector P2 replaces the 32-pin edgecard connector of a conventional AT expansion bus.
Hardware Configuration 2.17.3 Bus Expansion Guidelines One way to expand a Little Board/486i is by connecting short cables to the header connectors. Ampro makes a small ribbon cable connector assembly that you can use to connect standard ribbon cable connectors to the female expansion bus connectors on the Little Board/486i. Contact your Ampro sales representative for more information about the ribbon cable adapter. There are restrictions when attaching peripherals to the expansion bus with ribbon cables.
Hardware Configuration CAUTION Do not use resistive bus termination! termination, use AC termination only. If the signal requires The actual requirements for signal termination depend on system configuration, interconnecting bus cable, and on the number and type of expansion modules used. It is the system engineer’s responsibility to determine the need for termination. 2.17.
Hardware Configuration Pin Signal Name Function In/Out Current A1 -IOCHCK bus NMI input IN N/A A2 SD7 Data bit 7 I/O 8 mA 10K PU A3 SD6 Data bit 6 I/O 8 mA 10K PU A4 SD5 Data bit 5 I/O 8 mA 10K PU A5 SD4 Data bit 4 I/O 8 mA 10K PU A6 SD3 Data bit 3 I/O 8 mA 10K PU A7 SD2 Data bit 2 I/O 8 mA 10K PU A8 SD1 Data bit 1 I/O 8 mA 10K PU A9 SD0 Data bit 0 I/O 8 mA 10K PU A10 IOCHRDY Processor Ready Ctrl IN N/A 1K PU A11 AEN Address Enable I/O 8 m
Hardware Configuration Pin Signal Name Function In/Out Current B1 GND Ground N/A N/A B2 RESETDRV System reset signal OUT 12 mA B3 +5V +5 Volt power N/A N/A B4 IRQ9 Interrupt request 9 IN N/A B5 -5V To J16-3 N/A N/A B6 DRQ2 DMA request 2 IN N/A B7 -12V To J16-1 N/A N/A B8 -ENDXFR Zero wait state IN N/A B9 +12V To J10-1 N/A N/A PU/PD/Ser* 10K PU 10K PU B10 N/A Keyed pin N/A N/A B11 -SMEMW Mem Write(lwr 1MB) I/O 24 mA 33 S, 10K PU B12 -SMEMR Mem
Hardware Configuration Pin Signal Name Function In/Out Current C0 GND** Ground N/A N/A C1 -SBHE Bus High Enable I/O 8 mA C2 LA23 Address bit 23 I/O 24 mA C3 LA22 Address bit 22 I/O 24 mA C4 LA21 Address bit 21 I/O 24 mA C5 LA20 Address bit 20 I/O 24 mA C6 LA19 Address bit 19 I/O 24 mA C7 LA18 Address bit 18 I/O 24 mA C8 LA17 Address bit 17 I/O 24 mA PU/PD/Ser* 10K PU C9 -MEMR Memory Read I/O 8 mA 33 S, 27K PU C10 -MEMW Memory Write I/O 8 mA 33 S
Hardware Configuration Pin Signal Name Function In/Out Current D0 GND** Ground N/A N/A D1 -MEMCS16 16-bit Mem Access IN N/A 330 PU D2 -IOCS16 16-bit I/O Access IN N/A 330 PU D3 IRQ10 Interrupt Request 10 IN N/A 10K PU D4 IRQ11 Interrupt Request 11 IN N/A 10K PU D5 IRQ12 Interrupt Request 12 IN N/A 10K PU D6 IRQ15 Interrupt Request 15 IN N/A 10K PU D7 IRQ14 Interrupt Request 14 IN N/A 10K PU D8 -DACK0 DMA Acknowledge 0 OUT 6mA D9 DRQ0 DMA Request 0
Hardware Configuration 2.17.5 Interrupt and DMA Channel Usage The AT bus provides several interrupt and DMA control signals. When you expand the system with MiniModule products or plug-in cards that require either interrupt or DMA support, you must select which interrupt or DMA channel to use. Typically this involves switches or jumpers on the module. In most cases, these are not shared resources. It is important that you configure the new module to use an interrupt or DMA channel not already in use.
Hardware Configuration Channel Function 0 Available for 8-bit transfers 1 Available for 8-bit transfers (Multimode Parallel port) 2 Floppy controller 3 Available for 8-bit transfers 4 Cascade for channels 0-3 5 Available for 16-bit transfers 6 Available for 16-bit transfers 7 Available for 16-bit transfers Table 2-40 DMA Channel Assignments The following table summarizes the available interrupt assignments for all subsystems on the Little Board/486i.
Hardware Configuration 2–54
CHAPTER 3 SOFTWARE CONFIGURATION 3.1 INTRODUCTION This chapter provides the information you will need to configure your Little Board/486i from a software or firmware point-of-view. The first section describes the SETUP function. It describes how to configure onboard options. Additional sections cover each major functional block of the board. Note The SETUP descriptions in the following section also contain much useful information about each SETUP topic.
Little Board/486i Technical Manual Page Menu Name Functions 1 Standard (CMOS/EEPROM) Configuration 2 Options/Peripheral Configuration 3 Extended SCSI and Hard Disk configuration Set SCSI controller parameters Configure SCSI disk map Select floppy or hard disk boot Configure DOS disk map 4 Extended Serial Console Configuration Configure serial port parameters for serial console output Configure serial port output handshake option Configure serial port parameters for serial console input Delete/i
Software Configuration 3.3 SETUP PAGE 1—STANDARD (CMOS) SETUP The first SETUP page contains the parameters normally saved in CMOS RAM plus some additional parameters unique to the Little Board/486i. The only parameters not also saved in the EEPROM memory are the real-time clock date and time. If no battery is used or if the battery fails, the date and time will not be accurate. All other parameters are saved in the EEPROM. The following figure shows what can be configured from SETUP page 1.
Little Board/486i Technical Manual density floppy drives. That is, you can read and boot from 360K floppies in a 1.2M 5-1/4 inch drive, and from 720K floppies in a 1.44M 3-1/2 inch drive. Drive Parameter Setup Enter the number and type of floppy drives in the system. If the drives connected to the system do not match the parameters in the configuration memory, POST displays an error message. To eliminate the error message, set the drive parameters to match your floppy drives. 3.3.
Software Configuration the configuration memory to the new memory size. Until you do this, an error message will appear during POST. 3.3.6 Error Halt Select which kinds of errors will halt the POST. If you plan to use the module without a keyboard, be sure to set this option to not halt on keyboard error. 3.3.7 Video Shadow RAM This option, when enabled, allows the ROM BIOS to copy the contents of a video BIOS into DRAM.
Little Board/486i Technical Manual 3.4 SETUP PAGE 2—OPTIONS/PERIPHERAL CONFIGURATION Use SETUP page 2 to enable or disable many of the functions and peripherals provided on the Little Board/486i. Figure 3-2 shows what can be configured on SETUP page 2, and the sections that follow describe each parameter. Figure 3-2 SETUP Page 2 3.4.1 Extended BIOS Normally, the Ampro Extended BIOS is enabled. This allows access to SETUP pages three and four and the features they define.
Software Configuration Port Address Serial 1 3F8h – 3FFh Serial 2 2F8h – 2FFh Serial 3 3E8h – 3EFh Serial 4 2E8h – 2EFh Table 3-2 Serial Port I/O Addresses COMn is a logical designation, not a physical value. When the system boots, the ROM BIOS scans the standard serial port addresses and installs the first port it finds as COM1. If it finds a second port, it installs that one as COM2, and so on. If you disable a serial port, the COMn designations change. 3.4.
Little Board/486i Technical Manual ;===================================================================== init: mov ah,1ch mov al,-1 mov bx,414Dh mov cx,5052h int 10h ;===================================================================== Compare this SETUP option with the POST Test Display option (see below), which affects only the POST display. 3.4.8 POST Test Display Enable or disable POST display. If set to Disable, the messages from the POST will not be sent to the console.
Software Configuration You must also set hardware jumpers to configure the byte-wide sockets for the devices you install. Refer to Chapter 2 for jumper positions. If you are using the byte-wide sockets for Solid State Disk (SSD), using Ampro’s Solid State Disk software, follow the directions for setting the byte-wide sockets that are in the SSD Technical Manual. 3.4.
Little Board/486i Technical Manual 3.4.15 Flat Panel Display Type There are up to 8 pre-installed flat panel video BIOS configurations available from SETUP, numbered 1 through 8. Select the panel you want by selecting its number. The following panels are supported (numbers with no manufacturer’s part numbers are still under development). Cable wiring lists for these flat panels are given in Appendix A.
Software Configuration is not at the end of the SCSI cable, set this option to Disable and install termination on the appropriate SCSI devices.
Little Board/486i Technical Manual 3.5 SETUP PAGE 3—SCSI HARD DISK One unique feature of the Little Board/486i is that its ROM BIOS contains hard disk support functions that allow easy integration of SCSI and IDE drives. Use this SETUP screen to configure for your hard disk drives and other SCSI peripherals. Descriptions of each field are provided in sections below. Figure 3-3 SETUP Page 3 With the Ampro Extended BIOS, SCSI hard disks are available to DOS through standard ROM BIOS functions (INT 13).
Software Configuration 3.5.1 SCSI Drive Parameter Setup Several SCSI drive parameters need to be set in the configuration memory using SETUP. ! SCSI/BIOS Services—To use the SCSI BIOS for hard disks, it must be enabled. When disabled, the system will not boot from an attached drive, nor will standard disk-related BIOS calls (INT13) be able to see a drive. SCSI services are still available from BIOS calls in your program, even when SCSI/BIOS Services is disabled.
Little Board/486i Technical Manual 3.6 SETUP PAGE 4—SERIAL CONSOLE The ROM BIOS includes a unique set of features which allow full access to the system at any time over standard RS232 serial ports. An embedded system may take advantage of these remote access capabilities using the serial console functions in the following ways: Serial console—Use Serial 1 or Serial 2 as a console, replacing the standard video monitor and keyboard.
Software Configuration Console Output Device—Select the console output device, either Video, Serial 1, Serial 2, or None. Console Input Device—Select the console input device, either the PC Keyboard, Serial 1, Serial 2, or None. Serial Console Output Setup—Enter the communication parameters for your console output serial port. Set the data length, stop bits, parity, and baud rate to match your serial output device. Console Output Handshake—Enable or disable hardware handshaking.
Little Board/486i Technical Manual The supported switches and their meaning are as follows: Switch Function ? Display a usage help screen T Set the (hardware) real-time clock time and date from the current DOS time and date. @file.ext Writes the specified file to the board’s CMOS RAM and configuration EEPROM. Drive and path are optional in the file name. Wfile.ext Write CMOS RAM and EEPROM contents to the file specified. The file name may contain an optional drive and path. Table 3-5 SETUP.
Software Configuration EMS Option—The Little Board/486i can emulate the Lotus-Intel-Microsoft Expanded Memory Specification Version 4.0 (LIM EMS 4.0), with the memory management capability of the 80486DX2/4 CPU, under control of a device driver. Such drivers are available with the newer versions of DOS. With Microsoft MS-DOS, the driver is called EMM386.EXE. Serial Ports—DOS normally supports the board’s four serial ports as COM1, COM2, COM3, and COM4.
Little Board/486i Technical Manual 3.9.2 Sample Code for Interrupt Sharing The following assembly language code is an example of software that supports the wired-OR approach to interrupt sharing. In the code sample shown, Serial 1 and Serial 3, located at hardware addresses 03F8h and 03E8h, respectively, have both been assigned to interrupt IRQ4. The interrupt line will be activated whenever either of the serial ports contain a new byte of received data.
Software Configuration AND AL,1 JZ In2 POP DX POP AX IRET ; ; ; ;see if data received *********INTERRUPT INITIALIZATION ROUTINE********* MOV DX,OFFSET SerInt MOV AL,0Ch ;set the vector for IRQ4 PUSH DS PUSH CS POP DS ; set the vector for INT13 using a DOS function call MOV AH,25h ;set the interrupt vector in AL INT 21h ;the vector is in DS:DX ; POP DS ;restoreDS IN AL,INTR1 AND AL,0EFh ;unmask IRQ4 OUT INTR1,AL MOV AL,64h ;clear interrupt 4 flag OUT INTR,AL ; ; ****************PORT ADDRESS TABLE********
Little Board/486i Technical Manual other serial device for input, and a standard video display for output. Or you can use a standard keyboard with a serial display, or use a standard ASCII terminal for both input and output. To use an ASCII terminal as the console device for your system, set both the input and output parameters to Serial Port 1 (or 2), and set the serial baud rate, data length, and stop bits to match the setting of your terminal.
Software Configuration Serial Handshake The serial console device data format and the Little Board/486i serial port data format must match for the devices to properly communicate. In addition, the hardware handshake behavior must be compatible. Normally, a serial port’s Data Set Ready (DSR) and Clear To Send (CTS) input handshake signals must be true (active) for the ROM BIOS to send data out. On the Little Board/486i, the hardware handshake can be enabled or disabled with SETUP.
Little Board/486i Technical Manual handshaking signals for increased throughput. Data flow is monitored by a watchdog timer (separate from the board’s watchdog timer) to ensure reliable transfers. ! Extended Capabilities Parallel Port (ECP)—Compliant with the IEEE 1284 Extended Capabilities Port Protocol and ISA Standard (Rev 1.09, January 7, 1993), developed by Microsoft. The ECP mode provides the highest level throughput for the parallel port.
Software Configuration the port to input only; a 0 sets it to output only. Here is a sample of code for dynamically changing the port direction after it is in Extended Mode.
Little Board/486i Technical Manual Register Bit DATA (378h) (278h) 0 1 2 3 4 5 6 7 STATUS (379h) (279h) 0 1 2 3 4 5 6 7 CONTROL (37Ah) (27Ah) 0 1 2 3 4 5 6 7 Signal Name or Function In/Out Active High/Low J15 Pin DB25F Pin I/O I/O I/O I/O I/O I/O I/O I/O High High High High High High High High 3 5 7 9 11 13 15 17 2 3 4 5 6 7 8 9 TMOUT 0 0 -ERROR SLCT PE -ACK (IRQ) BUSY In ----In In In In In ------Low High High Low High ------4 25 23 19 21 ------15 13 12 10 11 -STROBE -AUTOFD -INIT SLC
Software Configuration Register Bit Definitions: Signal Name Full Name TMOUT Timeout -ERR Error SLCT Printer selected status PE Paper end -ACK Acknowledge -BUSY Busy Reflects the complement of the BUSY input. 0 indicates a printer is busy. STROBE Strobe This bit is inverted and output to the -STROBE pin. AUTOFD Auto feed This bit is inverted and output to the -AUTOFD pin. -INIT Initiate output This bit is output to the -INIT pin.
Little Board/486i Technical Manual IEEE Customer Service 445 Hoes Lane PO Box 1331 Piscataway, NJ 08855-1331 USA Phone: (800) 678-IEEE (in the US and Canada) (908) 981-0060 (outside the US and Canada) FAX: (908) 981-9667 Telex: 833233 3.11 BYTE-WIDE SOCKETS The two 32-pin byte-wide memory sockets at S0 and S1 support a variety of 28- and 32-pin JEDEC pinout memory devices, including EPROM, Flash EPROM, and SRAM.
Software Configuration ;---------------------------------------------------------; Page select code for byte-wide sockets ;---------------------------------------------------------MOV AH,0CDH ; AMPRO function call MOV AL,nn ; Use 03 for S0, 04 for S1 MOV BL,nn ; Use 01 to turn ON or 00 to turn OFF MOV BH,x0h ; The upper nibble of BH contains the page INT 13H ; number for devices larger than 64 K.
Little Board/486i Technical Manual 3.11.2 Byte-Wide Socket Signals Jumper arrays W14 (for S0), W15 (for S1) configure the byte-wide sockets for specific memory devices. In addition, jumpers W2, W21, control backup battery to S0 for use with SRAMs. The following table list the signals that appear on the pins of W14 and W15.
Software Configuration 3.12 SCSI CONTROLLER The SCSI controller can serve many purposes, including controlling hard disk drives, tape drives, text scanners, and printer and communications servers. The ROM BIOS supports booting DOS from a SCSI device such as a hard disk. With Ampro’s ROM BIOS support, you can use any device compatible with the SCSI Common Command Set for “direct access devices.
Little Board/486i Technical Manual Typically, SCSI drives come preset to SCSI ID 0, LUN 0. The “SCSI Initiator ID” option sets the CPU board’s SCSI Initiator ID. The SCSI Disk Map options are used to specify the ID and LUN of up to seven SCSI drives. DOS Disk Map options assign SCSI devices as DOS drives. For example, in a system with one SCSI drive, set SCSI Initiator to 7, SCSI Disk 1 to Id 0, LUN 0, and 1st Hard Disk to SCSI Disk 1. 2.
Software Configuration ! Repeater, router, or bridge—Devices that extend the size of a network beyond the limitations of one segment. These devices not only form a pathway for network signals traveling from one trunk segment to another; they also regenerate and strengthen network signals. ! Station—Any device that is connected to a network by means of a network interface card (such as the Little Board/486i). ! Node—Another term for a network station. Each node has its own network interface card.
Little Board/486i Technical Manual Modern network architectures are based on the OSI model which defines layers of software between the network hardware, the network operating system, and the applications that use the network services. At the “bottom” level is the actual Ethernet cable and the hardware interface, in this case, the Little Board/486i LAN interface.
Software Configuration standards and recommendations set forth by the controller chip manufacturer. To develop a custom driver, you will need detailed information on the SMC9000-series controller chip, which is available from SMC. Contact SMC at the following address: SMC 80 Arkay Drive Hauppauge, NY 11788 Phone: (516) 435-6000 FAX: (516) 231-6004 3.13.
Little Board/486i Technical Manual Contact LanWorks at the following address for information about their “Bootware”: LanWorks Technologies Inc. 2425 Skymark Ave. Mississauga, Ontario, Canada Phone: 800-808-3000 905-238-5528 FAX: 905-2238-9407 E-mail: sales@mhs.lanworks.com Addresses and phone numbers of companies providing compatible LAN drivers: Novell, Inc. 1640-D Berryessa Rd.
Software Configuration Note The minimum byte-wide socket address window on the Little Board/486i is 64K bytes. Any devices smaller than 64K bytes will be visible in the address space at multiple addresses. For instance, a 16K byte device will be “mirrored” at (for instance) D0000h, D4000h, D8000h, DC000h. The boot PROM code you use must be intelligent enough to prevent itself from being run multiple times during the boot process.
Little Board/486i Technical Manual 3.14 FLAT PANEL/CRT VIDEO CONTROLLER 3.14.1 Developing a Custom BIOS for an Unsupported LCD Flat Panel Ampro supplies flat panel BIOS images for several popular flat panels, accessible under SETUP. If you select an unsupported panel, you must create a custom BIOS. A custom BIOS is created from an existing BIOS using a customizing program. Ampro provides a BIOS modification kit containing the program and complete documentation.
Software Configuration A complete description of the PC Video interface is beyond the scope of this manual. To find out more about the PC Video interface, its timing and architecture, contact: Chips and Technologies 2950 Zanker Road San Jose, CA 95134 Phone: 408 434-0600 Telex: 272929 CHIPS UR FAX: 408 526-2275 Ask for information pertinent to the 65545 High Performance Flat Panel/CRT VGA controller and its use with “PC Video”. 3.
Little Board/486i Technical Manual ;---------------------------------------------------------; Watchdog timer control program ;---------------------------------------------------------MOV AH,0C3h ; Watchdog Timer BIOS function MOV AL,nn ; Use “00” to disable, “01” to enable ; timer. MOV BX,mm ; Selects time, in seconds ;(00-FFh; 1-255 seconds) INT 15h Ampro provides a simple DOS program that can be used from the command line or in a batch program to manage the watchdog timer.
Software Configuration Memory Address Function 0100000h - 3FFFFFFh Extended memory 00F0000h - 00FFFFFh 64K ROM BIOS. 00D0000h - 00EFFFFh Byte-wide memory sockets S0 and S1 if enabled. Otherwise, free. 00CC000h - 00CFFFFh Onboard BIOS Expansion Flash device for Ethernet boot PROM code 00C0000h - 00CBFFFh Video BIOS for onboard flat panel video controller.
Little Board/486i Technical Manual I/O Address Function 3F8h - 3FFh Primary serial port 3F2h - 3F7h Floppy disk controller ports 3F2: FDC Digital output register 3F4: FDC Main status register 3F5: FDC Data register 3F7: FDC Control register 3F0h - 3F1h Ampro reserved 3E8h - 3EFh Third serial port 3D0h - 3DFh Video controller 3C0h - 3CFh Flat Panel/CRT VGA display adapter 3B0h - 3BFh Monochrome display adapter 378h - 37Fh Primary parallel printer port 340h - 35Fh SCSI interface (0140H-015
Software Configuration Note Other I/O ports below 100h are reserved for internal system functions and should not be accessed. 3.20 UTILITY SOFTWARE OVERVIEW The Little Board/486i Development Kit provides a number of software utilities on the Ampro Common Utilities diskette. Some of the programs provided on this diskette are: FLASHWRI—Flash PROM utility for writing program images to Flash devices in byte-wide sockets. SETUP—A utility used to access the ROM BIOS SETUP function from the DOS command line.
Little Board/486i Technical Manual 3–42
APPENDIX A FLAT PANEL CABLES This section lists the cable wiring for the flat panels supported by the ROM BIOS. Use these lists to construct cables for the supported panels. Wiring for the Little Board/486i connector J3, the flat panel’s connector, and backlight inverter (where required) is shown. In some cases, a third-party support board is used in the assembly. Use SETUP to select the video BIOS parameters for the panel you will be using. Note Panel technology is changing rapidly.
Little Board/486i Technical Manual A.
Appendix A Notes: Sharp LM64P839 Passive Monochrome LCD Panel 1. This wiring list assumes that you have installed Ampro's optional LCD Bias Supply board on connector J4. 2. Recommended backlight inverter is Xentek LS280. 3. Mating connector for the Little Board/486i connector J3 is 3M 3425-6600 (or equivalent). 4. Mating connector to the flat panel is Molex 51021-1500 (or equivalent). 5. Mating connector to the Xentek LS280 backlight inverter is Molex 51021-0200 (or equivalent).
Little Board/486i Technical Manual A.
Appendix A Notes: Sharp LJ64ZU51 Gray Scale Electroluminescent 1. Power management can be obtained by connecting the panel's Vcc to the LB486i's VDDSAFE (pin 44) and utilizing the optional LCD Bias Supply board. 2. These panel pins must be connected to an external +24V power supply. 3. Mating connector for the Little Board/486i connector J3 is 3M 3425-6600 (or equivalent). 4. Mating connector to the flat panel is 3M 3399-6626 (or equivalent).
Little Board/486i Technical Manual A.
Appendix A Notes: Sharp LM64C35P Dual scan STN color 1. Power management can be obtained by connecting the panel's Vcc to the LB486i's VDDSAFE (pin 44) and utilizing the optional LCD Bias Supply board. 2. This input (VCON) must have a contrast adjustment voltage applied, in the range of 0.8 to 2.8 volts. 3. Recommended backlight inverter is Xentek LS380. 4. Mating connector for the Little Board/486i connector J3 is 3M 3425-6600 (or equivalent). 5.
Little Board/486i Technical Manual A.
Appendix A Notes: Sharp LQ10D131 TFT Color 1. Power management can be obtained by connecting the panel's Vcc to the LB486i's VDDSAFE (pin 44) and utilizing the optional LCD Bias Supply board. 2. Recommended backlight inverter is Xentek LS380. 3. Mating connector for the Little Board/486i connector J3 is 3M 3425-6600 (or equivalent). 4. Mating connector for the Quadrangle adapter board is Hirose DF11-32DP-DS (or equivalent). 5.
Little Board/486i Technical Manual A.
Appendix A Notes: Sharp LQ64D142 TFT Color 1. Power management can be obtained by connecting the panel's Vcc to the LB486i's VDDSAFE (pin 44) and utilizing the optional LCD Bias Supply board. 2. Recommended backlight inverter is Xentek LS460. 3. Mating connector for the Little Board/486i connector J3 is 3M 3425-6600 (or equivalent). 4. Mating connector for the Quadrangle adapter board is Hirose DF11-32DP-DS (or equivalent). 5.
Little Board/486i Technical Manual A.
INDEX Bus termination, 2-45 1 10BaseT, 2-39 Byte-wide, 1-2 Accessing large devices, 3-26 2 Addressing, 2-24 28-pin devices, in 32-pin sockets, 2-23 BIOS calls, 2-25 A Configuration, 2-25, 3-8 AAN-8702, 2-25 Device, part numbers, 2-23 AAN-8804, SCSI BIOS, 3-29 Flash programming, 3-28 AAN-8805, EEPROM access, 3-16 In memory map, 3-39 AAN-9003, 2-25 Page select code, 3-26 AAN-9210, Extended BIOS, 3-6, 3-28 Serial programming, 3-14 AAN-9403, Serial boot, 3-9, 3-14, 3-21 Socket signals, 3-28
Little Board/486i Technical Manual Clock, 2-41, 3-3 Direction, parallel port, 3-21 COM port table, 3-20 Disk, floppy, 2-16, 3-3 Configuration Disk, IDE, 2-18, 3-4 Summary, 2-4 Disk, SCSI, 2-20, 3-29 Configuration, Byte-wide, 2-25 DMA, 2-51 Connector DOS, 3-16 AUI Ethernet (J8), 2-40 and SCSI, 3-29 CRT (J5), 2-31 LAN drivers for, 3-32 Ethernet RJ45 (J7), 2-39 MODE command, 3-21 Flat panel video (J3), 2-32 SCSI drive preparation, 3-29 Floppy (J14), 2-18 Versions, 3-29 IDE (J12), 2-19 D
Index Floppy drives, 2-16, 3-3 LED, power, 2-43 Floppy interface, 2-16, 3-7 LIM 4.
Little Board/486i Technical Manual N Ports, 3-17 NDIS, 3-32 POST, SETUP, 3-5 Netware driver, 3-32 Power Connector (J1), 2-6 Network operating systems, 3-31 Power fail write protect, 2-7 Network terms, 3-30 Power LED, 2-43 Network trunk, 3-31 Power requirements, 2-6 NMI, 2-7 Power supplies, switching, 2-7 NMI, powerfail, 3-38 Power, DC, 2-6 Novell, Inc.
Index SCSI drive setup, 3-13 Termination, AT bus, 2-44 SCSI hard disk drives, 3-12 Termination, floppy drives, 2-17 SCSI interface, 2-20 Termination, PC bus, 2-45 SCSI utilities, 3-12 Termination, SCSI bus, 2-20 SCSI-II option, 1-2 Terminators, 3-31 Security switch, 2-43 TERMPWR, 2-22 Segment, 3-30 Timer, watchdog, 2-41 Serial boot, 3-21 Twisted pair interface (J7), 2-39 Serial boot loader, 3-9 Twisted-pair, 3-31 Serial console, 3-19 U Serial console option, 3-14, 3-20 Serial port, 1-2,
