SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 151

• Manufacturer Part Number: SPC8106
• Description: LCD/CRT VGA CONTROLLER
• Manufacturer: S-MOS Systems

CRT Controller Registers
SPC8106
CRT Controller Index/Data Register
3B4/D4h RW 3B5/D5h RW
n/a
00 Horizontal Total Register RW
Horizontal
Total Bit 7
01 Horizontal Display Enable End Register RW (if AUX[00] bit 0 = 0)
Horizontal
DE End Bit 7
02 Horizontal Blanking Start Register RW
Horizontal
Blanking
Start Bit 7
03 Horizontal Blanking End Register RW (see note below)
Dummy
Read Select
R/W (see
note)
04 Horizontal Retrace Start Register RW
HRTC Start
Bit 7
05 Horizontal Retrace End Register RW
Horizontal
Blanking
End Bit 5
06 Vertical Total End Register RW
VTotal End
Bit 7
07 CRTC Overflow Register RW
VRTC Start
Bit 9
08 Preset Row Scan Register RW
n/a
09 Maximum Scan Line Register RW
Line
Doubling
Enable
0A Cursor Start Register RW
n/a
411-1.0
n/a
Horizontal
Total Bit 6
Horizontal
DE End Bit 6
Horizontal
Blanking
Start Bit 6
Dummy
Display
Skew R/W
Bit 1
(see note)
HRTC Star
Bit 6
Horizontal
Retrace
Delay Bit 1
VTotal End
Bit 6
VDisplay
End Pos’n
Bit 9
Byte Pan Bit
1
Line
Compare
Bit 9
n/a
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
CRT
Controller
Index Bit 5
Horizontal
Total Bit 5
Horizontal
DE End Bit 5
Horizontal
Blanking
Start Bit 5
Dummy
Display
Skew R/W
Bit 0
(see note)
HRTC Start
Bit 5
Horizontal
Retrace
Delay Bit 0
VTotal End
Bit 5
VTotal End
Bit 9
Byte Pan Bit
0
VBlank Start
Bit 9
Cursor
Disable
CRT
Controller
Index Bit 4
Horizontal
Total Bit 4
Horizontal
DE End Bit 4
Horizontal
Blanking
Start Bit 4
Horizontal
Blanking End
Bit 4
HRTC Start
Bit 4
HRTC End
Bit 4
VTotal End
Bit 4
Line
Compare Bit
8
Preset Row
Scan Bit 4
Max Scan
Line Bit 4
Cursor Start
Row Bit 4
X12-SP-001-07
CRT
Controller
Index Bit 3
Horizontal
Total Bit 3
Horizontal
DE End Bit 3
Horizontal
Blanking
Start Bit 3
Horizontal
Blanking End
Bit 3
HRTC Start
Bit 3
HRTC End
Bit 3
VTotal End
Bit 3
VBlank Start
Bit 8
Preset Row
Scan Bit 3
Max Scan
Line Bit 3
Cursor Start
Row Bit 3
CRT
Controller
Index Bit 2
Horizontal
Total Bit 2
Horizontal
DE End Bit 2
Horizontal
Blanking
Start Bit 2
Horizontal
Blanking End
Bit 2
HRTC Start
Bit 2
HRTC End
Bit 2
VTotal End
Bit 2
VRTC Start
Bit 8
Preset Row
Scan Bit 2
Max Scan
Line Bit 2
Cursor Start
Row Bit 2
Hardware Functional Specification
CRT
Controller
Index Bit 1
Horizontal
Total Bit 1
Horizontal
DE End Bit 1
Horizontal
Blanking
Start Bit 1
Horizontal
Blanking End
Bit 1
HRTC Start
Bit 1
HRTC End
Bit 1
VTotal End
Bit 1
VDisplay
End Pos’n
Bit 8
Preset Row
Scan Bit 1
Max Scan
Line Bit 1
Cursor Start
Row Bit 1
CRT
Controller
Index Bit 0
Horizontal
Total Bit 0
Horizontal
DE End Bit 0
Horizontal
Blanking
Start Bit 0
Horizontal
Blanking End
Bit 0
HRTC Start
Bit 0
HRTC End
Bit 0
VTotal End
Bit 0
VTotal End
Bit 8
Preset Row
Scan Bit 0
Max Scan
Line Bit 0
Cursor Start
Row Bit 0
SP1-109