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5. Each Component Function
Serial Port Interface : SERIAL1 - 3
SERIAL1, 2, 3 (RS-232C Ports)
The product has five channels of RS-232C compliant serial ports supporting up to a baud rate of
115,200bps with a 16-byte transmission-dedicated data buffer and a 16-byte reception-dedicated data
buffer. You can use "Chapter4 BIOS Setup" to configure an I/O address, interrupt and unused state for
each of the ports independently. (The same I/O address and IRQ cannot be shared with any other
device.)
Please refer to "Chapter6 I/O Port Addresses" for more information on I/O address and register
function.
Table 5.7. SERIAL 1, 2, 3, 4, 5 I/O Addresses and Interrupts
SERIAL
1
2
3
4 (For touch panel
communication)
5 (For activation control
Microcontroller
communication) *1
I/O address and interrupt above is the BIOS factory setting.
*1 : Unavailable to the user.
Table 5.8. Serial Port Connector
Connector used on the product
1
6
Pin No.
Signal name
1
CD
2
RD
3
TD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
48
I/O address
3F8h - 3FFh
2F8h - 2FFh
3E8h - 3EFh
2E8h - 2EFh
220h - 228h
9-socket D-SUB (MALE)
5
No.4-40UNC
Inch thread
9
Meaning
Direction
Carrier detect
Received data
Transmitted data
Output
Data terminal ready
Output
Signal ground
Data set ready
Request to send
Output
Clear to send
Ring indicator
Interrupt
IRQ 4
IRQ 3
IRQ 5
IRQ 7
IRQ 15
Input
Input
-----
Input
Input
Input
IPC-BX800 Series User's Manual
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