PISO-1730U Card
32-ch Optically Isolated DIO Board (Sink, NPN)
User Manual/ Ver. 1.2/ Jan. 2015/ PMH-0025-11/ Page: 30
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 AUX Control Register
(Read/Write): wBase+2
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Aux7
Aux6
Aux5
Aux4
Aux3
Aux2
Aux1
Aux0
Aux?=0
this Aux is used as a D/I
Aux?=1
this Aux is used as a D/O
When the PC is first turned on, all Aux signals are in a Low-state. All Aux are designed as D/I
for all PIO/PISO series. Please set all Aux to DI state.
6.3.3 Aux Data Register
(Read/Write): wBase+3
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Aux7
Aux6
Aux5
Aux4
Aux3
Aux2
Aux1
Aux0
When the Aux is used for D/O, the output state is controlled by this register. This register is
designed for feature extension. Therefore, do not use this register.
