ID 34424, Rev. 3.0
Page A - 9
CP307
CP307-HDD
CUSTOMER SPECIFIC
P R E L I M I N A R Y
The CP307 has the AT keyboard connector implemented on a 6-pin Mini-Din connector.
A.6.2
Universal Serial Port
One PC-compatible serial RS-232, 9-pin D-Sub port is available which is fully compatible with
the 16C550 controller. This port includes a complete set of handshaking and modem control
signals. Data transfer rates up to 115.2 kB/s are supported.
The COM1 interface is routed to the serial port connector J9.
Figure A-7: Keyboard Connector J7 Pinout
PIN
SIGNAL
DESCRIPTION
I/O
1
KDATA
Keyboard data
I/O
2
MDATA
Mouse data
I/O
3
GND
Ground signal
--
4
VCC
VCC signal
--
5
KCLK
Keyboard clock
I/O
6
MCLK
Mouse clock
I/O
Note ...
The PS/2 power supply provides short-circuit protection and all the signal lines
are EMI-filtered.
Figure A-8: Serial Port Con. J9
6
9
5
1
J9
Table A-2: Serial Port Con. J9 Pinout
PIN
SIGNAL
DESCRIPTION
I/O
1
DCD
Data carrier detect
I
2
RXD
Receive data
I
3
TXD
Transmit data
O
4
DTR
Data terminal ready
O
5
GND
Signal ground
--
6
DSR
Data send request
I
7
RTS
Request to send
O
8
CTS
Clear to send
I
9
RI
Ring indicator
I
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