SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 178

• Manufacturer Part Number: SPC8104
• Description: VGA LCD CONTROLLER
• Manufacturer: S-MOS Systems

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Step2:
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Step3:
PW
SetupChipTbl:
Programming Notes and Examples
SP3-24
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
mov
mov
out
inc
in
ret
mov
call
ret
EQU
DW
DW
DB
DB
DW
DB
DB
DB
DB
DB
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
a proper working environment.
dx, 3DEh
ax, 1ADEh
dx, ax
dx
al, dx
si, OFFSET SetupChipTbl
RunTable
8000h
PW+03C2h,67h
03DEh
-1
03D4h
-1
00h,11000001b
01h, 80
05h, 12
010h,02
012h,480/2
; DX = port 3DEh.
; AX = index DEh, value 1Ah.
;
; Point to 3DFh.
; Do the read.
; Default card to 3Dx, 28Mhz Clock
; 16 bit Mem & I/O, enable CRTC-B set
; CRTC_B[1] = 80 (dec)
; CRTC_B[5] = 12 (dec)
; CRTC_B[10] = 2 (2 vert. lines)
; CRTC_B[12h] = 8 msb of 480
; Port write (RunTable)
412-1.0
SPC8104