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87 PCM-9588 User Manual
Appendix C Programmable GPIO & Watchdog Timer
; AL - Value to write
;Output: none
;==============================================================
Ct_I2CWriteByteProcNear
push ax
push cx
mov dx,SMBus_Port +04h
mov al,ch ;ID cmd(Write)
out dx,al
call Delay5ms
call Delay5ms
call CT_Chk_SMBus_Ready
pop ax
mov dl,03h
out dx,al ;Index
call Delay5ms
call Delay5ms
pop ax
mov dl,05
out dx,al ;Data0
call Delay5ms
call Delay5ms
mov dl,02h
mov al,48h
out dx,al ;write data
call Delay5ms
call Delay5ms
mov cx, 100h
@@:
newiodelay
loop short @B
call CT_Chk_SMBus_Ready
ret
Ct_I2CWriteByteEndp
CT_Chk_SMBus_ReadyProcNear
mov dx,SMBus_Port + 0;status port