w83627thg Winbond Electronics Corp America, w83627thg Datasheet - Page 82
w83627thg
Manufacturer Part Number
w83627thg
Description
Winbond Lpc I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83627THG.pdf
(142 pages)
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Manufacturer
Quantity
Price
Part Number:
W83627THG
Manufacturer:
WINBOND/华邦
Quantity:
20 000
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6.2.3
To exit the extended function mode, one write of 0xAA to EFER is required. Once the chip exits the
extended function mode, it is in the normal running mode and is ready to enter the configuration mode.
6.2.4
The following example is written in Intel 8086 assembly language. It assumes that the EFER is located
at 2Eh, so EFIR is located at 2Eh and EFDR is located at 2Fh. If HEFRAS (CR26 bit 6) is set, 4Eh can
be directly replaced by 4Eh and 2Fh replaced by 4Fh.
;-----------------------------------------------------------------------------------
; Enter the extended function mode ,interruptible double-write
;-----------------------------------------------------------------------------------
MOV
MOV
OUT
OUT
;-----------------------------------------------------------------------------
; Configuration 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
Exit the extended function mode
Software programming example
DX,AL
DX,2EH
AL,87H
DX,AL
DX,AL
DX,2EH
AL,07H
DX,2FH
AL,01H
DX,AL
DX,2EH
AL,F0H
DX,AL
DX,2FH
AL,3CH
DX,AL
DX,2EH
AL,AAH
DX,AL
; point to Logical Device Number Reg.
; select logical device 1
; select CRF0
; update CRF0 with value 3CH
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- 75 -
W83627THF/W83627THG
Publication Release Date: September 26, 2006
|
|
Revision 1.2
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