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Applicant: Motorola Inc. FCC ID:IHDT56FV1

Exhibit 8

Page 1 of 8

G24 Developer Guide

Table of Contents

GENERAL.........................................................................................................................2

GENERAL DESCRIPTION............................................................................................ 3

GETTING STARTED...................................................................................................... 5

GENERAL PURPOSE SWITCHES............................................................................... 6

EMU

–

UID

........................................................................................................ 6

A/D

OPERATION

............................................................................................................... 6

GPIO ............................................................................................................................... 7

UDIO

.............................................................................................................................. 7

SPI................................................................................................................................... 7

ENERAL

OSITIONS

........................................................................................................ 8

Summary of content (8 pages)

PAGE 1
Applicant: Motorola Inc. FCC ID:IHDT56FV1 G24 Developer Guide Table of Contents GENERAL......................................................................................................................... 2 GENERAL DESCRIPTION............................................................................................ 3 GETTING STARTED ...................................................................................................... 5 GENERAL PURPOSE SWITCHES........................................
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 General This document content describes the operation of the G24 Evaluation board (EVB) P1. The G24 EVB supports two G24 versions: OEM, and fixed mobile. For the fixed mobile a secondary board is mounted on EVB (“Piggy Board”, using connector P50). The follow PDF file contains EVB schematic and layout (all References are searchable) 8899_schem_place_s earch.
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 General Description 8 7 6 4 5 3 2 1 24 19 20 21 9 15 23 16 2222 10 17 10 18 13 14 12 11 G24 EVB – Top View (Without 2nd Keypad board) 1) P210 - Battery socket connector for a Lithium-ion battery. Note: set P203 jumper to battery, line 9. 2) J200, J201 – Lab Power Supply jacks. Note: set P203 jumper to P.S, line 9. 3) J230 – Wall Adapter connector. Note: set P203 jumper to adapter, line 9. 4) S200, D200 – Main power switch, and led indicator.
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 13) J100 – SIM Card socket. 14) S140, S120, S121 - General switches for testing. 15) J430 – Speaker Jack connector. 16) J460 – Microphone Jack connector. 17) J440 – Headset Jack connector. 18) J480 – Alert speaker Jack connector. 19) P50- 40 pin header for 2nd Keypad board (“Piggy Board”). 20) S100, S141 - General switches for testing. 21) P100 – 70-pin header. This header spreads G24 70 pin connector (P1) for signal measuring. 22) CLI Display.
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 Getting Started - Select power supply source (Wall Adapter, lab power supply, or battery), and connect it to suitable jack (either line 1, 2, or 3). Set P203 jumper (line 9) according to your main power source selection. Make sure that P201, P200 jumpers are connected (line 24). Mount G24 on G24EVB using P1 connector (line 23). Connect G24 Antenna to P2 (line 10) - Optional Turn On main power switch S200 (line 4), led indicator D200 is On.
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 General Purpose Switches The G24 contains General Purpose Switches for simulating testing states. For detail schematics see PDF file in General Section (at the beginning of this doc). Line 12 EMU Bus – UID pin S170, S171 and S160 1st switch are used to simulate UID pin of the G24 EMU bus. The default position (as shown in figure) is that UID pin is not connected. - Switching On (left) S160 UID position shall enable S170, S171.
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 Line 14 GPIO G24 has 8 General Purpose I/O. S120, S121 along with GPIO led indicators simulate GPIO state. G24 has internal pull-ups. - Switch left position – GPIO line is disconnected. - Switch right position – GPIO line is shorted to ground. Audio S140 Audio position selects the Audio path of G24. - Switch left position – Analog Audio path (Using G24 internal vocoder). - Switch right position – digital Audio path (Using G24EVB on board vocoder).
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Applicant: Motorola Inc. FCC ID:IHDT56FV1 Line 20 General Positions - *, # - Simulating *, and # phone keys. Option – connects between WKUPO_N & WKUPI_N (Pins 16 & 26) in G24 70 pin. WAKEUP - connects WKUPI_N (pin 16) to ground ADPTR – connects Wall Adapter voltage to USB VBUS. CHRG – connects between USB VBUS to G24 Ignition. IGN – connect G24 Ignition to G24EVB voltage.