Specifications

WM_PRJ_Q2400_PTS_002 - 002
24th January 2003
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Pin
#
Name I/O I/O type Description Comment
19 ROW3 I/O CMOS/1X Keyboard Row
20 GPO2 or
XT104/RXD2 *
O 1X or CMOS General Purpose
Output or Aux.serial
Link
Multiplexed
21 ROW4 I/O CMOS/1X Keyboard Row
22 GPO1 I/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
Multiplexed
25 COL1 I/O CMOS/1X Keyboard Column
26 GPO0 or
SPI_AUX
O 3X General Purpose
Output or SPI Aux
SIM 3V / 5V
Multiplexed
27 COL2 I/O CMOS/1X Keyboard Column
28 SPI_EN or
GPO3
O 1X SPI enable or
General Purpose
Output
Multiplexed
29 COL3 I/O CMOS/1X Keyboard Column
30 CT105/RTS1 I CMOS RS232 interface
Request To Send
Pull up to VCC
with 100K
Ω
when not used
31 COL4 I/O CMOS/1X Keyboard Column
32 CT104/RXD1 O 1X RS232 interface –
Receive
33 AUXV0 I Analog Auxiliar ADC input 0 Can be tied to
GND if not used
34 CT108-
2/DTR1
I CMOS RS232 interface
Data Terminal Ready
Pull up to VCC
with 100K
Ω
when not used
35 GPIO5 or
CT105/RTS2 *
I/O CMOS / 2X or
2x
General Purpose I/O
or Aux. serial Link
Multiplexed
36 CT107/DSR1 O 1X RS232 interface
Data Set Ready
37 CT106/CTS1 O 1X RS232 interface
Clear To Send