SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 161
SPC8104
Manufacturer Part Number
SPC8104
Description
VGA LCD CONTROLLER
Manufacturer
S-MOS Systems
Datasheet
1.SPC8104.pdf
(306 pages)
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Step1:
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Step2:
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Step3:
SPC8104
STEP1 - Before ANY ports can be accessed, the SPC8104 chip must be
STEP2 - Unlock Auxiliary Port.
Before programming the Auxiliary port for configuration,
it must be unlocked. Writing 1Ah to 3DEh index DEh and reading
it back will unlock the Auxiliary Port.
STEP3 - This sets the chip up for the correct panel and for
412-1.0
mov
mov
out
ret
mov
mov
out
inc
in
ret
mov
call
ret
enabled.
a proper working environment.
S-MOS Systems, Inc. • Tel: (408) 922-0200 • Fax: (408) 922-0238 • http://www.smos.com
dx,3c3h
al,1
dx,al
dx, 3DEh
ax, 1ADEh
dx, ax
dx
al, dx
si, OFFSET SetupChipTbl
RunTable
; DX = port 3DEh.
; AX = index DEh, value 1Ah.
;
; Point to 3DFh.
; Do the read.
; End of Step2
; End of Step3.
Programming Notes and Examples
SP3-7
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