SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 98

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

Hardware Functional Specification
09 Maximum Scan Line Register RW
Line Doubling
Enable
0A Cursor Start Register RW
n/a
0B Cursor End Register RW
n/a
0C Start Address High Register RW
bit 15
0D Start Address Low Register RW
bit 7
0E Cursor Position High Register RW
bit 15
0F Cursor Position Low Register RW
bit 7
10 Dummy Vertical Retrace Start Register RW (see note below)
bit 7
11 Vertical Retrace End Register RW
Protect
CRTC
Registers 0-7
12 Vertical Display Enable End Register RW
bit 7
SP1-72
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
Dummy
Line Comp.
bit 9
(see note)
n/a
bit 1
bit 14
bit 6
bit 14
bit 6
bit 6
Dummy
Refresh
Cycles
Select (see
note)
bit 6
Dummy Cursor Skew
(see note)
Dummy
VBlank
Start bit 9
(see note)
Disable
Vertical Int
Disable
Cursor
bit 0
bit 13
bit 5
bit 13
bit 5
bit 5
bit 5
bit 4
bit 4
bit 4
bit 12
bit 4
bit 12
bit 4
bit 4
Vertical Int
Clear
bit 4
VDisplay End Position
Cursor Position High
Cursor Position Low
Dummy VRTC Start
Start Address High
Start Address Low
X15-SP-001-08.1
bit 3
bit 3
bit 3
bit 11
bit 3
bit 11
bit 3
bit 3
bit 3
bit 3
Cursor Start Row
Cursor End Row
Max Scan Line
bit 2
bit 2
bit 2
bit 10
bit 2
bit 10
bit 2
bit 2
Dummy VRTC End (see note)
bit 2
bit 2
bit 1
bit 1
bit 1
bit 9
bit 1
bit 9
bit 1
bit 1
bit 1
bit 1
bit 0
bit 0
bit 0
bit 8
bit 0
bit 8
bit 0
bit 0
bit 0
bit 0
412-1.0
SPC8104