Digital Media System-on-Chip (DMSoC) Product Preview

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2.4.10 I
2
C Interface
2.4.11 Serial Interface
TMS320DM355
Digital Media System-on-Chip (DMSoC)
SPRS463A – SEPTEMBER 2007 – REVISED SEPTEMBER 2007
Table 2-15. UART Terminal Functions (continued)
TERMINAL
TYPE
(1)
OTHER
(2) (3)
DESCRIPTION
NAME NO.
MMCSD1_DA
MMCSD1: DATA0
TA0/
A18 I/O/Z V
DD
GIO: GIO019
GIO019/
UART2: TXD
UART2_TXD
The includes an I
2
C two-wire serial interface for control of external peripherals. This interface is
multiplexed with GIO signals.
Table 2-16. I
2
C Terminal Functions
TERMINAL
TYPE
(1)
OTHER
(2) (3)
DESCRIPTION
NAME NO.
I2C_SDA/ I2C: Serial data
R13 I/O/Z V
DD
GIO015 GIO: GIO015
I2C_SCL/ I2C: Serial clock
R14 I/O/Z V
DD
GIO014 GIO: GIO014
(1) I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
(2) Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
(3) PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 k Ω resistor should be used.)
The includes three independent serial ports. These interfaces are multiplexed with GIO and other signals.
Table 2-17. SPI Terminal Functions
TERMINAL
TYPE
(1)
OTHER
(2) (3)
DESCRIPTION
NAME NO.
SPI0_SCLK C12 I/O/Z V
DD
SPI0: Clock
SPI0_SDENA[0]/ SPI0: Chip select 0
B12 I/O/Z V
DD
GIO103 GIO: GIO[103]
GIO007 GIO: GIO[007]
C17 I/O/Z V
DD
SPI0_SDENA[1] SPI0: Chip select 1
SPI0_SDI/ SPI0: Data in
A12 I/O/Z V
DD
GIO102 GIO: GIO[102]
SPI0_SDO B11 I/O/Z V
DD
SPI0: Data out
SPI1_SCLK/ SPI1: Clock
C13 I/O/Z V
DD
GIO010 GIO: GIO[010]
SPI1: Chip select 0
SPI1_SDENA[0]/
E13 I/O/Z V
DD
GIO: GIO[011] - Active low during MMC/SD boot (can be used as
GIO011
MMC/SD power control)
SPI1_SDI/ SPI1: Data in or
GIO009/ A13 I/O/Z V
DD
SPI1: Chip select
SPI1_SDENA[1] GIO: GIO[09]
SPI1_SDO/ SPI1: Data out
E12 I/O/Z V
DD
GIO008 GIO: GIO[008]
(1) I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
(2) Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
(3) PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 k Ω resistor should be used.)
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