User's Manual

WM_PRJ_Q2400_PTS_002 - 004
March 5, 2004
Pin # Name I/O I/O type Description Comment
19 ROW3 I/O CMOS/1X Keyboard Row
20 GPO2 or
CT104/RXD2 *
O 1X or CMOS General Purpose Output or
Aux.serial Link (UART2)
Multiplexed
21 ROW4 I/O CMOS/1X Keyboard Row
22 GPO1 O 3X General Purpose Output
23 COL0 I/O CMOS/1X Keyboard Column
24 GPIO0 or
CT106/CTS2 *
I/O CMOS/2X or
CMOS
General Purpose I/O
or Aux. serial Link
(UART2)
Multiplexed
25 COL1 I/O CMOS/1X Keyboard Column
26 GPO0 or
SPI_AUX
O 3X or
1X
General Purpose Output or
SPI Aux
Or SIM 3 V / 5 V
Multiplexed
27 COL2 I/O CMOS/1X Keyboard Column
28 SPI_EN or GPO3 O 1X or
CMOS
SPI enable or General
Purpose Output
Multiplexed
29 COL3 I/O CMOS/1X Keyboard Column
30 CT105/RTS1 I CMOS Serial link interface
Request To Send
(UART1)
Pull up to VCC with
100 kΩ when not
used
31 COL4 I/O CMOS/1X Keyboard Column
32 CT104/RXD1 O 1X Serial link interface
Receive (UART1)
33 AUXV0 I Analog Auxiliary ADC input 0 Can be tied to GND if
not used
34 CT108-2/DTR1 I CMOS Serial link interface
Data Terminal Ready
(UART1)
Pull up to VCC with
100 kΩ when not
used
35 GPIO5 or
CT105/RTS2 *
I/O CMOS / 2X or 2X General Purpose I/O
or Aux. serial Link
(UART2)
Multiplexed
36 CT107/DSR1 O 1X Serial link interface
Data Set Ready
(UART1)
37 CT106/CTS1 O 1X Serial link interface
Clear To Send
(UART1)
38 BAT_TEMP I Analog ADC input for battery
temperature measurement
Can be tied to GND if
not used
39 CT103/TXD1 I CMOS Serial link interface
Transmit
Pull up to VCC with
100 kΩ when not
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