User Manual

SubCompact Board GENE-U15B
Appendix D DIO D-3
Bit Name R/W PWR Description
7 GP27_OCTRL R/W VSB3V GPIO 27 output control. Set to 1 for
output function. Set to 0 for input
function (default).
6 GP26_OCTRL R/W VSB3V GPIO 26 output control. Set to 1 for
output function. Set to 0 for input
function (default).
5 GP25_OCTRL R/W VSB3V GPIO 25 output control. Set to 1 for
output function. Set to 0 for input
function (default).
4 GP24_OCTRL R/W VSB3V GPIO 24 output control. Set to 1 for
output function. Set to 0 for input
function (default).
3 GP23_OCTRL R/W VSB3V GPIO 23 output control. Set to 1 for
output function. Set to 0 for input
function (default).
2 GP22_OCTRL R/W VSB3V GPIO 22 output control. Set to 1 for
output function. Set to 0 for input
function (default).
1 GP21_OCTRL R/W VSB3V GPIO 21 output control. Set to 1 for
output function. Set to 0 for input
function (default).
0 GP20_OCTRL R/W VSB3V GPIO 20 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO2x Output Data Register – Index 21h
Power-on default [7:0]=0000_1000b
Bit Name R/W PWR Description
7 GP27_ODATA R/W VSB3V GPIO 27 output data.
6 GP26_ODATA R/W VSB3V GPIO 26 output data.
5 GP25_ODATA R/W VSB3V GPIO 25 output data.
4 GP24_ODATA R/W VSB3V GPIO 24 output data.
3 GP23_ODATA R/W VSB3V GPIO 23 output data.
2 GP22_ODATA R/W VSB3V GPIO 22 output data.
1 GP21_ODATA R/W VSB3V GPIO 21 output data.
0 GP20_ODATA R/W VSB3V GPIO 20 output data.
GPIO2x Input Status Register – Index 22h
Power-on default [7:0]=xxxx_xxxxb