Product specifications

VT8601A Apollo PLE133
Revision 1.82 October 22, 2001 -65- Graphics Accelerator PCI Bus Master Registers
Technologies, Inc.
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DVD Registers
Port 2280 – MC Version ID............................................... RO
7-0 Version ID
Port 2281 – MC Control ....................................................RW
7 Debug Mode
0 Disable ................................................... default
1 Enable
6 MC Completion Interrupt
0 Disable ................................................... default
1 Enable
5 VO Completion Interrupt
0 Disable ................................................... default
1 Enable
4 Host Bus Identification
0 AGP ..................................................... default
1 PCI
3 Decode Overwrite
0 Enable..................................................... default
1 Disable
2-1 IDCT Data Format
00 -reserved- ............................................... default
01 9 bits
10 8 bits
11 16 bits
0 MC Mode
0 Disable ................................................... default
1 Enable
Port 2282 – MC Frame Buffer Configuration.................RW
7 Interlaced Display
6 TV Flicker Filter Bypass
0 Use TV CRTC ........................................default
1 Use VGA CRTC
5 Request Threshold of Display Command Queue
4 Request Threshold of PBF
3 Request Threshold of PFF
2 Hardware SP RL-Decode Disable
0 Enable .....................................................default
1 Disable
1-0 Frame Buffer Configuration
00 4-frame....................................................default
01 3.5-frame
10 3.5-frame HHR
11 3-frame