PIO-D48 Series Card
48-channel OPTO-22 Compatible DIO Board
User Manual/Ver. 3.4/Aug. 2015/PMH-006-34/Page: 38
6.3.1
RESET\ Control Register
(Read/Write): wBase+0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
RESET\
When the PC’s power is first turned on, RESET\ signal is in a Low-state.
This will disable all D/I/O
operations.
The user has to set the RESET\ signal to a High-state before any D/I/O command
applications are initiated.
For example:
outportb (wBase,1);
/* RESET\=High
all D/I/O are enable now */
outportb (wBase,0);
/* RESET\=Low
all D/I/O are disable now */
6.3.2 INT Mask Control Register
(Read/Write): wBase+5
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
EN3
EN2
EN1
EN0
EN0=0
Disable INT_CHAN_0 as an interrupt signal (Default).
EN0=1
Enable INT_CHAN_0 as an interrupt signal
EN1=0
disable INT_CHAN_1 as a interrupt signal (Default)
EN1=1
enable INT_CHAN_1 as a interrupt signal
EN2=0
disable INT_CHAN_2 as a interrupt signal (Default)
EN2=1
enable INT_CHAN_2 as a interrupt signal
EN3=0
disable INT_CHAN_3 as a interrupt signal (Default)
EN3=1
enable INT_CHAN_3 as a interrupt signal