Integration Guide

- xiii -
Audio Schematics 27
Control Connector Signal Descriptions And Functions 29
Module Power (PINS 87, 89, 91, 93, 95, 97, 99) 29
Modem Power-on And Recovery Techniques 30
Power Switch Logic Detect (Pin 85) 30
ON/OFF (PIN 37) 30
Phone On - PON (PIN 35) 31
Internal Power Switch 32
Voltage Reference - VREG_MSME1.8 (PIN 77) 33
USB (PINS 1, 3, 5, 7) 33
General Purpose Input/Output Interface 33
RTC Sleep 34
Serial Interfaces And Handshake (Pins 11, 13, 15, 17, 19, 21, 23, 25) 35
UART 2 (Pins 27, 29) 36
Digital Audio Interface (Pins 12, 14, 16, 18) 36
Digital Audio Configuration 36
Digital Audio Data Format 36
32 KHz Output (PIN 56) 37
Analog-to-Digital Inputs (PIN 44 And 74) 37
Handset Microphone Input (PINS 65, 67) 38
Handset Microphone BIASOutput (PINS 53, 63) 38
Handset Speaker Output (PINS 71, 73) 38
Headset Microphone Input (PIN 55) 38
Headset Speaker Output Left And Right (PINS 57, 59) 39
Headset Detect (PIN 47) 39
Circuit Protection 39
5 USB Driver Installation 41
USB Driver Installation (Windows XP) 42