VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-29-
Register Summary Tables
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Extended Registers – VGA Sequencer Indexed
Port
Index Extended Sequencer Regs
Default
Acc
3C5
8
Old-New Status
00
R
3C5
9
Graphics Controller Version
58
R
3C5
A
-reserved-
—
—
3C5
B
Version/Old-New Mode Ctrl
F3
RW
3C5
C
Configuration Port 1
B7
RW
3C5
C
Configuration Port 2
—
RW
3C5
D
Old Mode Control 2
20
RW
3C5
D
New Mode Control 2
10
RW
3C5
E
Old Mode Control 1
A8
RW
3C5
E
New Mode Control 1
40
RW
3C5
F
Power-up Mode 2
BF
RW
3C5
10
VESA™ Big BIOS Control
00
RW
3C5
11
Protection
00
RW
3C5
12
Threshold
21
RW
3C5
13-17 -reserved-
—
—
3C5
18
VCLK1 Frequency Control 0
00
RW
3C5
19
VCLK1 Frequency Control 1
00
RW
3C5
1A
VCLK2 Frequency Control 0
00
RW
3C5
1B
VCLK2 Frequency Control 1
00
RW
3C5
1C-1F -reserved-
—
—
3C5
20
Clock Syn / RAMDAC Setup
00
RW
3C5
21
Signature Control
00
RW
3C5
23-22 Signature Data
—
R
3C5
24
Power Management Ctrl
0E
RW
3C5
25
Monitor Sense
—
R
3C5
26-36 -reserved-
—
—
3C5
37
Video Key Mode
00
RW
3C5
38
Feature Connector Control
00
RW
3C5
39-4F -reserved-
—
—
3C5
52-50 Playback Color Key Data
—
RW
3C5
53
-reserved-
—
—
3C5
56-54 Playback Color Key Mask
—
RW
3C5
57
Playback Vid Key Mode
—
RW
3C5
58-59 -reserved-
—
—
3C5
5A-5F Scratch Pad 0-5
—
RW
3C5
62-60 2
nd Playback Color Key Data
—
RW
3C5
63
-reserved-
—
—
3C5
66-64 2
nd Playback ColorKey Mask
—
RW
3C5
67-7F -reserved-
—
—
Port
Index New Video Display Regs
Default
Acc
3C5
82-80 W1 U FB Start Address
—
RW
3C5
85-83 W1 V FB Start Address
—
RW
3C5
88-86 W2 FB Start Address
—
RW
3C5
8A-89 W2 H Scaling Factor
—
RW
3C5
8C-8B W2 V Scaling Factor
—
RW
3C5
90-8D W2 Live Video Start
—
RW
3C5
94-91 W2 Live Video End
—
RW
3C5
95
W2 Live Vid Line Buf Level
—
RW
3C5
96
New Live Video Win Ctrl 0
00
RW
3C5
97
New Live Video Win Ctrl 1
00
RW
3C5
98
New Live Video Win Ctrl 2
00
RW
3C5
99
New Live Video Win Ctrl 3
00
RW
3C5
9B-9AVid Row Byte Off. (W1-UV)
—RW
3C5
9D-9C Vid Row Byte Offset (W2-Y)
—RW
3C5
9ELine Buf Req Threshold
00
RW
3C5
9F
VBI Control
—
RW
3C5
A3-A0 VBI Frame Buffer Address
—
RW
3C5
A7-A4 VBI Capture Start
—
RW
3C5
AB-A8 VBI Capture End
—
RW
3C5
AD-AC VBI V Interrupt Position
—
RW
3C5
AF-AE Capture Row Byte Offset
—
RW
3C5
B1-B0 Window 1 HSB Control
—
RW
3C5
B3-B2 Window 2 HSB Control
—
RW
3C5
B6-B4 2
nd Display Addr Select
—
RW
3C5
B7
Video Sharpness
—
RW
3C5
BA-B8 2
nd Capture Addr Select
—
RW
3C5
BB
-reserved-
—
—
3C5
BC
Contrast Control
—
RW
3C5
BD
Dual View MUX Control
—
RW
3C5
BE
Miscellaneous Control Bits
00
RW
3C5
BF-CD -reserved-
—
—
3C5
CE
Window 2 Live Video Ctrl
00
RW
3C5
CF
-reserved-
—
—
3C5
D1-D0 Row Byte Offset (W2-UV)
—RW
3C5
D4-D2 W2 U-Frame Start Address
—
RW
3C5
D7-D5 W2 V-Frame Start Address
—
RW
3C5
D9-D8 Digital TV Interface Control
—
RW
3C5
DB-DA W2 V Count Status
—
R
3C5
DD-DC Dual View Control
—
RW
3C5
DF-DE W1 V Count Status
—
R
Port
Index Reserved Registers
Default
Acc
3C5
E0-FF -reserved-
—
RW
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