PIO-D48 Series Card
48-channel OPTO-22 Compatible DIO Board
User Manual/Ver. 3.4/Aug. 2015/PMH-006-34/Page: 8
2.2
I/O Port Location
There are six 8-bit I/O ports in the PIO-D48 series cards. Each I/O port can be programmed as a D/I
or D/O port. When the PC is first powered-on or reset, all the ports are configured as D/I ports.
These D/I ports can be selected to either pull-high or pull-low via placement of the JP2 to JP7
jumpers. These I/O port locations are given as follows:
Connector of PIO-D48/D48U
CN1 (DB37)
CN2 (50-pin)
PA0 ~ PA7
Port0
(pull-high/low by JP2)
Port3
(pull-high/low by JP5)
PB0 ~ PB7
Port1
(pull-high/low by JP3)
Port4
(pull-high/low by JP6)
PC0 ~ PC7
Port2
(pull-high/low by JP4)
Port5
(pull-high/low by JP7)
Connector of PEX-D48
CN1 (DB37)
CN2 (50-pin)
PA0 ~ PA7
Port0
(pull-high/low by JP4)
Port3
(pull-high/low by JP5)
PB0 ~ PB7
Port1
(pull-high/low by JP3)
Port4
(pull-high/low by JP6)
PC0 ~ PC7
Port2
(pull-high/low by JP2)
Port5
(pull-high/low by JP7)
Connector of PIO-D48SU
CON1 (SCSI 100-pin)
PA00 ~ PA07
Port0
(pull-high/low by JP2)
PB00 ~ PB07
Port1
(pull-high/low by JP3)
PC00 ~ PC07
Port2
(pull-high/low by JP4)
PA10 ~ PA17
Port3
(pull-high/low by JP5)
PB10 ~ PB17
Port4
(pull-high/low by JP6)
PC10 ~ PC17
Port5
(pull-high/low by JP7)
Note:
Refer to
Sec. 2.1
for the I/O port locations and JP2~JP7 pull-high/low placements on the board
layout.