SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 152

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

Hardware Functional Specification
CRT Controller Index/Data Register
0B Cursor End Register RW
n/a
0C Start Address High Register RW
Start Addr
High Bit 15
0D Start Address Low Register RW
Start Addr
Low Bit 7
0E Cursor Position High Register RW
Cursor
Position
High Bit 15
0F Cursor Position Low Register RW
Cursor
Position Low
Bit 7
10 Vertical Retrace Start Register RW
VRTC Start
Bit 7
11 Vertical Retrace End Register RW
Protect
CRTC
Registers 0-7
12 Vertical Display Enable End Register RW (if AUX[00] bit 0 = 0)
VDisplay
End Pos’n
Bit 7
13 Offset Register RW
Offset Bit 7
14 Underline Location Register RW
n/a
15 Vertical Blanking Start Register RW
VBlank Start
Bit 7
16 Vertical Blanking End Register RW
VBlank End
Bit 7
SP1-110
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
Dummy
Cursor Skew
R/W Bit 1
(see note)
Start Addr
High Bit 14
Start Addr
Low Bit 6
Cursor
Position High
Bit 14
Cursor
Position Low
Bit 6
VRTC Start
Bit 6
Dummy
Refresh
Cycles
R/W Bit
(see note)
VDisplay
End Pos’n
Bit 6
Offset Bit 6
Double
Word Select
VBlank Start
Bit 6
VBlank End
Bit 6
Dummy
Cursor Skew
R/W Bit 0
(see note)
Start Addr
High Bit 13
Start Addr
Low Bit 5
Cursor
Position High
Bit 13
Cursor
Position Low
Bit 5
VRTC Start
Bit 5
Vertical Int
Disable
VDisplay
End Pos’n
Bit 5
Offset Bit 5
Dummy
Count by 4
R/W Bit
(see note)
VBlank Start
Bit 5
VBlank End
Bit 5
Cursor End
Row Bit 4
Start Addr
High Bit 12
Start Addr
Low Bit 4
Cursor
Position High
Bit 12
Cursor
Position Low
Bit 4
VRTC Start
Bit 4
Vertical Int
Clear
VDisplay
End Pos’n
Bit 4
Offset Bit 4
Underline
Row Scan
Bit 4
VBlank Start
Bit 4
VBlank End
Bit 4
X12-SP-001-07
Cursor End
Row Bit 3
Start Addr
High Bit 11
Start Addr
Low Bit 3
Cursor
Position High
Bit 11
Cursor
Position Low
Bit 3
VRTC Start
Bit 3
VRTC End
Bit 3
VDisplay
End Pos’n
Bit 3
Offset Bit 3
Underline
Row Scan
Bit 3
VBlank Start
Bit 3
VBlank End
Bit 3
Cursor End
Row Bit 2
Start Addr
High Bit 10
Start Addr
Low Bit 2
Cursor
Position High
Bit 10
Cursor
Position Low
Bit 2
VRTC Start
Bit 2
VRTC End
Bit 2
VDisplay
End Pos’n
Bit 2
Offset Bit 2
Underline
Row Scan
Bit 2
VBlank Start
Bit 2
VBlank End
Bit 2
Cursor End
Row Bit 1
Start Addr
High Bit 9
Start Addr
Low Bit 1
Cursor
Position High
Bit 9
Cursor
Position Low
Bit 1
VRTC Start
Bit 1
VRTC End
Bit 1
VDisplay
End Pos’n
Bit 1
Offset Bit 1
Underline
Row Scan
Bit 1
VBlank Start
Bit 1
VBlank End
Bit 1
Cursor End
Row Bit 0
Start Addr
High Bit 8
Start Addr
Low Bit 0
Cursor
Position High
Bit 8
Cursor
Position Low
Bit 0
VRTC Start
Bit 0
VRTC End
Bit 0
VDisplay
End Pos’n
Bit 0
Offset Bit 0
Underline
Row Scan
Bit 0
VBlank Start
Bit 0
VBlank End
Bit 0
411-1.0
SPC8106