GSM0128IG001
26
Revision Draft – 9/22/08
6.5.1
I/O Connector Pin Assignments
The following table shows the pin assignments for the input/output connector. The pin assignments are
shown in order of functionality.
PIN
#
FUNCTION
Serial
Pin
I/O
ENABLER IIG
Description/Comments
1
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
2
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
3
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
4
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
5
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
6
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
7
Ground
R
GND
Electrical power return for digital and analog grounds.
8
Ground
R
GND
Electrical power return for digital and analog grounds.
9
Handset Speaker (-)
O
INTERNAL_SPK(-)
Handset speaker output (negative).
10
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
11
Ground
R
GND
Electrical power return for digital and analog grounds.
12
Power Input
P
Batt/Vcc
Electrical power input to Enabler IIG module.
13
Handset Speaker (+)
O
INTERN)
Handset speaker output (positive).
14
GPIO-1
I/O
GPIO-1
General-purpose Input/Output.
15
Ground
R
GND
Electrical power return for digital and analog grounds.
16
Ground
R
GND
Electrical power return for digital and analog grounds.
17
Microphone Bias
O
VMIC
Microphone Bias.
18
GPIO-5
I/O
GPIO-5
General-purpose Input/Output.
19
Ground
R
GND
Electrical power return for digital and analog grounds.
20
Reserved
Reserved for future use.
21
Handset Microphone (-)
I
INT_MIC(-)
Handset microphone input (negative).
22
Radio Power/Reset
I
RADIO_PWR/RST
Radio power/reset.
23
Ground
R
GND
Electrical power return for digital and analog grounds.
24
Power Control Signal
I
PWR_CTL_SIGNAL
Power Control Signal.
25
Handset Microphone (+)
I
I)
Handset microphone input (positive).
26
Reserved
Reserved for future use.
27
GPIO-3
I/O
GPIO-3
General-purpose Input/Output.
28
GPIO-2
I/O
GPIO-2
General-purpose Input/Output.
29
Reserved
Reserved for future use.
30
GPIO-4
I/O
GPIO-4
GPIO/MCSI TX.
31
Reserved
Reserved for future use.
32
GPIO-6
I/O
GPIO-6
GPIO/MCSI RX.
33
Ground
R
GND
Electrical power return for digital and analog grounds.
34
GPIO-7
I/O
GPIO-7
GPIO/MCSI CLK.
35
Reserved
O
Reserved
reserved
36
RTC Power
I
V
BAK
Modem backup power for real-time clock.
37
Reserved
Reserved for future use.
38
Headset Earphone (+)
O
HEADS)
Headset Earphone (positive).
39
GPIO-8
I/O
GPIO-8
GPIO8
40
Headset Microphone (-)
I
HEADSET_MIC(-)
Headset Microphone (negative).
41
Ground
5
R
GND
Electrical power return for digital and analog grounds.
42
Headset Microphone (+)
I
HEADS)
Headset Microphone (positive).
43
Serial Receive Data
2
O
RXD_RADIO
Serial Data to Host.
44
Ground
R
GND
Electrical power return for digital and analog grounds.
45
Data Set Ready
6
O
DSR_RADIO
DSR Signal to Host.
46
Reserved
O
Reserved
reserved
47
Data Carrier Detect
1
O
DCD
DCD Signal.
48
SIM Clock
O
SIM_CLK
SIM Clock. No Connect if on-board SIM holder is used.
49
Ring Indicator
9
O
RI
RING Indicator.
50
Ground
R
GND
Electrical power return for digital and analog grounds.
51
Serial Transmit Data
3
I
TXD_RADIO
Serial Data from Host.
52
SIM I/O
I/O
SIM_IO
SIM I/O Data. No Connect if on-board SIM holder is
used
53
Request To Send
7
I
RTS_RADIO
RTS Signal from Host.
