SBOX-2300 / VBOX-3130 Manual
32
SYSTEM RESOURCE
GPIO & Delay Time Setting (Delay Time only for VBOX-3130)
GPIO and Ignition Control Register
TheGeneralPurposeI/Oisaninterfaceavailableonsomedevices.Thesecanread
digitalsignalsfromotherpartsofacircuit,oroutputtocontrolotherdevices.AtGPIO
controlregister,theGPIisusetoreceivedata,theGPOissetdatatosend.
I/Oport:0xA30(base
address)forControlRegister(Read0xA2h/Write0xA1h)
0xA31(baseaddress)forControlDat aValue
DebugCommandLine
- OA30A1
- OA310F//SetBit4‐7toLow
7 6 5 4 3 2 1 0
DO4 DO3 DO2 DO1 DI4 DI3 DI2 DI1
0 = DI is low *
1 = DI is high
0 = DO is low
1 = DO is high *