AMD LE-366 user manual Appendix D Programming GPIO’s, GPIO0...GPIO7

GPIO0...GPIO7

bit0……bit7

-o 4E 87

;enter configuration

-o 4E 87

-o 4E 2A

-o 4F FD

;enable GPIO function

-o 4E 07

-o 4F 07

;enable GPIO configuration

-o 4E F0

-o 4F xx

;set GPIO as input/output; set ‘1’ for input,’0’for output

-o 4E F1

-o 4F xx

;if set GPIO’s as output, in this register its value can be set

Optional :

-o 4E F2

-o 4F xx

; Data inversion register ; ‘1’ inverts the current value of the

bits ,’0’ leaves them as they are

-o 4E 30

-o 4F 01

; active GPIO’s