VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-97
VGA Extended Registers
7HFKQRORJLHV ,QF
:H&
:H&RRQQHFW
QQHFW
CR62 – Enhancement 0.....................................................RW
7
Pause GE Operation (GEPAUSE)
0
Normal GE Operation ............................default
1
Pause GE Operation
6
PCI Retry for GE (ENGERTRY)
0
Disable ...................................................default
1Enable
5
Short Command (ENSHRT)
0
Disable ...................................................default
1Enable
4
Direct Read Even if GE is Busy (ENDIRRD)
0
Disable ...................................................default
1Enable
3
Reserved
........................................ always reads 0
2
Low Priority Arbitration Policy
0
Fixed Priority
1
Round Robin .........................................default
1
High Priority Arbitration Policy
0
Fixed Priority .........................................default
1
Round Robin
0
Frame Buffer Memory Size Select
0
8MB .....................................................default
14MB
CR63 – Enhancement 1 .................................................... RW
7-6
Reserved
........................................ always reads 0
5-4
Memory Folding Control
00 Normal................................................... default
01 FOLD6
10 FOLD7
11 -reserved-
3-2
Reserved
........................................ always reads 0
1-0
Extended FIFO Latency Control (LATV[5-4])
Combined with CR30
CR64 – DPA Extra
........................................................ RW
7
DPA On/Off
0
On
.................................................... default
1Off
6
DPA Bypass
0
Normal................................................... default
1Bypass
5-3
Reference Feedback Clock Delay
Maximum 2ns............................................. default = 0
2-0
Reference Internal Clock Delay
Maximum 2ns............................................. default = 0
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
