User's Manual

C24 Hardware Interface Manual
Version 0.3
Table of Contents
REVISION HISTORY....................................................................................................................................3
1 REGULATORY REQUIREMENT...........................................................................................................4
1.1 SAFETY STATEMENT AND REQUIREMENTS ..............................................................................................4
1.2 ANTENNA AND TRANSMISSION SAFETY PRECAUTIONS.............................................................................5
2 HARDWARE INTERFACE DESCRIPTION...........................................................................................7
2.1 OPERATING MODES ...............................................................................................................................7
2.2 POWER SUPPLY.....................................................................................................................................8
2.2.1 POWER CONSUMPTION........................................................................................................................ 8
2.3 POWER ON/OFF OPERATION..................................................................................................................9
2.3.1 TURNING THE MODULE ON ...................................................................................................................9
2.3.2 TURNING THE MODULE OFF............................................................................................................... 10
2.4 LOW POWER MODE .............................................................................................................................12
2.4.1 ACTIVATING LOW POWER MODE ........................................................................................................ 12
2.4.2 SERIAL INTERFACE DURING LOW POWER MODE ................................................................................. 13
2.4.3 TERMINATING LOW POWER MODE ....................................................................................................... 13
2.5 REAL TIME CLOCK...............................................................................................................................16
2.6 SERIAL INTERFACES ............................................................................................................................17
2.6.1 PRIMARY UART (UART1)................................................................................................................. 17
2.6.2 SECONDARY UART (UART2) ...........................................................................................................18
2.6.3 USB INTERFACE ...............................................................................................................................19
2.7 REMOVABLE-USER IDENTIFY MODULE (R-UIM) INTERFACE...................................................................20
2.8 AUDIO INTERFACE................................................................................................................................21
2.8.1 HANDSET MICROPHONE PORT ........................................................................................................... 21
2.8.2 HEADSET MICROPHONE PORT ........................................................................................................... 22
2.8.3 SPEAKER PORT.................................................................................................................................23
2.8.4 HEADSET DETECTION........................................................................................................................24
2.8.5 ALERT LOUDSPEAKER PORT .............................................................................................................. 24
2.8.6 DIGITAL AUDIO INTERFACE ................................................................................................................25
2.8.7 AUDIO OPERATING MODES ................................................................................................................26
2.8.8 AUDIO PROGRAMMING INTERFACE ..................................................................................................... 27
2.9 A/D INTERFACE ...................................................................................................................................30
2.9.1 POWER SUPPLY A/D ......................................................................................................................... 30
2.9.2 BATTERY TEMPERATURE A/D ............................................................................................................ 30
2.9.3 GENERAL PURPOSE A/D ................................................................................................................... 31
2.10 CONTROL AND INDICATORS INTERFACE ..............................................................................................32
2.10.1 RESET............................................................................................................................................32
2.10.2 VREF REFERENCE REGULATOR...................................................................................................... 32
2.10.3 WAKE-UP OUT................................................................................................................................33
2.10.4 ANTENNA DETECTION...................................................................................................................... 34
2.10.5 CDMA NW DETECTION .................................................................................................................. 35
2.10.6 TRANSMISSION INDICATOR............................................................................................................... 35
2.10.7 GENERAL PURPOSE I/O ..................................................................................................................35
2.11 ANTENNA INTERFACE.........................................................................................................................36
Motorola General Business Use
Page 2 of 36
Applicant: Motorola, INC
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