484
TMAA01-05 Options-Extender Board
TM8100/TM8200 Service Manual
© Tait Electronics Limited
June 2006
Table 19.4
External options connector (SK2) — pins and signals
Pin
Signal
Description
2
13V8_SW
1
13V8 supply
6
AUD_TAP_OUT
b
Programmable tap point out of the Rx or Tx audio
chain. DC-coupled
7
AGND
analogue ground
11
AUX_MIC_AUD
b
Auxiliary microphone input, with electret microphone
biasing provided.
Dynamic microphones are not supported.
1
AUD_TAP_IN
b
Programmable tap point into the Rx or Tx audio chain.
DC-coupled.
3
RSSI
2
analogue RSSI output
15
IOP_GPIO1
3
programmable function and direction
14
IOP_GPIO2
c
programmable function and direction
13
IOP_GPIO3
c
programmable function and direction
10
IOP_GPIO4
c
programmable function and direction
9
IOP_GPIO5
c
programmable function and direction
5
IOP_GPIO6
c
programmable function and direction
4
IOP_GPIO7
c
programmable function and direction
8
IOP_RXD
an RS-232 compliant asynchronous serial port -
receive data
12
IOP_TXD
an RS-232 compliant asynchronous serial port -
transmit data
1. This can be configured to be 5V. Refer to
“Power Supply Line” on page 480
.
2. This can be re-configured to be RX_BEEP_IN. Refer to
3. 3V3 CMOS output via 1k
Ω
series resistance. 5V tolerant input.
front view
Summary of Contents for TM8235
Page 1: ...TM8100 mobiles TM8200 mobiles Service Manual MMA 00005 04 Issue 4 June 2006...
Page 10: ...10 TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 62: ...62 Description TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 148: ...148 Disassembly and Reassembly TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 162: ...162 Servicing Procedures TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 178: ...178 Interface Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 258: ...258 Receiver Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 446: ...446 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...