A - 4 MTM700 Mobile Radio / Detailed Service Manual CONNECTOR PIN FUNCTIONS
Pin Function Description
1 GND Ground
2 MUX_CTRL TBA for future applications.
3 SPIB_CLK Part of the QSPIB
4 MUX_CTRL_1 To detect RS232 or SB9600 Mode (3V SB9600 / 0V RS232) *
5 A+ (via 22Ohms) Continuous battery voltage for sense via 22Ohms.
6 RESET_OUT Reset; its a output to Reset a SB9600 device.*
7 BUSY_OUT Busy Out for SB9600 Interface Circuit *
8 BUSY_IN Busy In for SB9600 Interface Circuit *
9 3V3_DIG 3.3V Sense Output (max. 10mA)
10 EXP_REQ Request Line from 4Wire/SB9600 UART *
11 SPIB_CS1_UART Part of the QSPIB (ship select) for 4wire RS232 UART
12 SPIB_CS_BT Part of the QSPIB (ship select) for future applications
13 SPIB_MISO Part of the QSPIB
14 NC Not Connected
15 SPIB_MOSI Part of the QSPIB
16 NC Not Connected
17 SAP_CLK Serial Audio Protocol, Clock.
18 GND Ground
19 INT_MIC Microphone Input
20 MIC Microphone Audio; for future applications
21 EXPANSION_PTT Expansion PTT
22 Blue_T_FSYNC Serial Audio Protocol, Frame Sync.
23 SAP_SRD Serial Audio Protocol, Receive Data
24 SAP_STD Serial Audio Protocol, Transmit Data
25 DGAN_SAP_FSYNC Serial Audio Protocol, Frame Sync.
26 SP_AUDIO Audio PA Input; for future applications
27 Radio ON/OFF (IGNITION) High active.
28 EXT_MUTE External mute of audio PA; for future applications
29 RS232_DCD Data Carrier Detect
30 RS232_TX TX-Data
31 RS232_DSR Data Set Ready
Table 19 Transceiver Pin Assignment of the Expansion Board Connector (40 pins)
*) For Expansion Head Connection only.
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