VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-101
VGA Extended Registers
7HFKQRORJLHV ,QF
:H&
:H&RRQQHFW
QQHFW
CR9B – Video Display Status ........................................RWC
7
Capture Interrupt
0
Disable ...................................................default
1Enable
6
Capture Interrupt Clear..................Write 1 to Clear
5
VGA Vertical Blank............................................. RO
4
Capture Interrupt Status..................................... RO
3
Display Double Buffer Status.............................. RO
2
VDQ (Capture FIFO) Empty .............................. RO
1
Capture VSYNC Status ....................................... RO
0
Capture Video Display Enable (VDE) Status .... RO
CR9C – Capture Control 1 .............................................. RW
7-6
Frame Capture Control
00 Interlace Capture.................................... default
01 Even/odd 60fps capture
10 Even field 30fps capture
11 Odd field 30fps capture
5
External HDE Select
0
Use Internal HDE .................................. default
1
Use External HDE
4
Capture Enable
0
Disable................................................... default
1Enable
3
Genlock Enable
0
Disable................................................... default
1Enable
2
Motion Effect Algorithm
0
Skip 2 lines ............................................ default
1
Skip 1 line
1
Capture Hsync Polarity
0
Normal ................................................... default
1
Invert
0
Capture Vsync Polarity
0
Normal ................................................... default
1
Invert
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