Eurotech Apollo User Manual page 116

APOLLO user manual
LCD control bits, GPIO1 and GPIO2 data registers
The LCD control bits correspond with those used on most standard LCD character
displays. GPIO1 and GPIO2 are standalone GPIO that are not used by the LCD
interface; the data direction register description describes the configuration of the GPIO.
IO address
Base address + 4Ch
IO address
Base address + 4Dh
116
Bit Description
7 Reserved
6 IOW
5 ENABLE
4 Reserved
3 Reserved
2 GPIO2
1 GPIO1
0 Reserved
Bit Description
7 Reserved
6 Reserved
5 Reserved
4 Reserved
3 Reserved
2 Reserved
1 Reserved
0 RS
Issue G