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WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU
®
4
Technical Specifications
4.1
General Purpose Connector Pin-out Description
Signal Name
Signal Name
Description I/O* Voltage
Mux
Nominal
Pin
Number
Nominal
Mux
Voltage I/O* Description
Power
Supply
I VBATT
ADC0/
VBATT
1 2
ADC0/
VBATT
ADC0/
VBATT
I
Power
Supply
Power
Supply
I VBATT
ADC0/
VBATT
3 4
ADC0/
VBATT
ADC0/
VBATT
I
Power
Supply
1.8V Supply
Output
O VCC_1V8
VCC_1V8
5 6
CHG-IN CHG-IN
I Charger
input
RTC Battery
connection
I/O
BAT-
RTC
BAT-RTC
7 8
CHG-IN CHG-IN
I Charger
input
SIM Power
Supply
O
1V8 or
3V
SIM-VCC
9 10
VCC_2V8 VCC_2V8
O
2.8V Supply
Output
SIM Data
I/O
1V8 or
3V
SIM-IO
11 12
SIMPRES GPIO18 VCC_1V8 I
SIM
Detection
SIM reset
Output
O
1V8 or
3V
~SIM-
RST
13 14
SIM-CLK 1V8 or
3V
O SIM
Clock
Buzzer
Output
O
Open
Drain
BUZZER
0
15 16
BOOT
VCC_1V8
I
Not
Used
LED0
Output
O
Open
Drain
LED0
17 18
~RESET VCC_1V8
I/O
RESET
Input
ON / ~OFF
Control
I VBATT
ON/~OFF
19 20
BAT-
TEMP
Analog
I Analog
temperature
Analog to
Digital Input
I Analog
ADC2
21 22
GPIO31 VCC_2V8
I/O
SPI1 Clock
O
VCC_2V8 GPIO28 SPI1-CLK
23 24
SPI1-I GPIO30 VCC_2V8 I SPI1 Data
Input
SPI1 Data
Input /
Output
I/O VCC_2V8 GPIO29 SPI1-IO
25 26
SPI2-CLK GPIO32 VCC_2V8
O
SPI2 Clock
SPI2 Data
Input /
Output
I/O VCC_2V8 GPIO33 SPI2-IO
27 28
GPIO35 VCC_2V8
I/O
SPI2 Data
Input
I VCC_2V8
GPIO34 SPI2-I
29 30
CT104-
RXD2
GPIO15 VCC_1V8 O
Auxiliary
RS232
Receive
Auxiliary
RS232
Transmit
I VCC_1V8
GPIO14
CT103-
TXD2
31 32
~CT106-
CTS2
GPIO16 VCC_1V8 O
Auxiliary
RS232 Clear
To Send
Auxiliary
RS232
Request To
Send
I VCC_1V8
GPIO17
~CT105-
RTS2
33 34
MIC2N Analog
I
Micro 2
Input
Negative
Speaker 1
Output
Positive
O Analog
SPK1P
35 36
MIC2P Analog
I
Micro 2
Input
Positive
