w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 119

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

Software programming example
The following example is written in Intel 8086 assembly language. It assumes that the EFER is located
at 3F0h, so EFIR is located at 3F0h and EFDR is located at 3F1h. If HEFRAS (CR26 bit 6) is set,
3F0h can be directly replaced by 370h and 3F1h replaced by 371h.
;-----------------------------------------------------------------------------------
; Enter the extended function mode, interruptible double-write
;-----------------------------------------------------------------------------------
MOV
MOV
OUT
OUT
;-----------------------------------------------------------------------------
; Configurate logical device 1, configuration register CRF0 |
;-----------------------------------------------------------------------------
MOV
MOV
OUT
MOV
MOV
OUT
;
MOV
MOV
OUT
MOV
MOV
OUT
;------------------------------------------
; Exit extended function mode
;------------------------------------------
MOV
MOV
OUT
DX, 3F0H
AL, 87H
DX, AL
DX, AL
DX, 3F0H
AL, 07H
DX, AL
DX, 3F1H
AL, 01H
DX, AL
DX, 3F0H
AL, F0H
DX, AL
DX, 3F1H
AL, 3CH
DX, AL
DX, 3F0H
AL, AAH
DX, AL
; point to Logical Device Number Reg.
; select logical device 1
; select CRF0
; update CRF0 with value 3CH
|
- 111 -
W83977ATF/W83977ATG
|
Publication Release Date: May 2006
Revision 0.6