Motorola MTM800 User Manual page 218

A - 4
Pin Function
1 GND
2 MUX_CTRL
3 SPIB_CLK
4 MUX_CTRL_1
5 A+ (via 22Ohms)
6 RESET_OUT
7 BUSY_OUT
8 BUSY_IN
9 3V3_DIG
10 EXP_REQ
11 SPIB_CS1_UART
12 SPIB_CS_BT
13 SPIB_MISO
14 NC
15 SPIB_MOSI
16 NC
17 SAP_CLK
18 GND
19 INT_MIC
20 MIC
21 EXPANSION_PTT
22 BlUE_T_FSYNC
23 SAP_SRD
24 SAP_STD
25 DGAN_SAP_FSYNC
26 SP_AUDIO
27 TERMINAL ON/OFF (IGNI-
TION)
28 EXT_MUTE
29 RS232_DCD
30 RS232_TX
31 RS232_DSR
32 RS232_RTS
Table A-3 Transceiver Pin Assignment of the Expansion Board Connector (40 pins)
Description
Ground
TBA for future applications.
Part of the QSPIB
To detect RS232 or SB9600 Mode (3V SB9600 / 0V RS232) *
Continuous battery voltage for sense via 22Ohms.
Reset; its a output to Reset a SB9600 device.*
Busy Out for SB9600 Interface Circuit *
Busy In for SB9600 Interface Circuit *
3.3V Sense Output (max. 10mA)
Request Line from 4Wire/SB9600 UART *
Part of the QSPIB (ship select) for 4wire RS232 UART
Part of the QSPIB (ship select) for future applications
Part of the QSPIB
Not Connected
Part of the QSPIB
Not Connected
Serial Audio Protocol, Clock.
Ground
Microphone Input
Microphone Audio; for future applications
Expansion PTT
Serial Audio Protocol, Frame Sync.
Serial Audio Protocol, Receive Data
Serial Audio Protocol, Transmit Data
Serial Audio Protocol, Frame Sync.
Audio PA Input; for future applications
High active.
External mute of audio PA; for future applications
Data Carrier Detect
TX-Data
Data Set Ready
Request To Send
*) For Expansion Head Connection only.
CONNECTOR PIN FUNCTIONS