VT8601 Via, VT8601 Datasheet - Page 103

• Manufacturer Part Number: VT8601
• Description: Slot-1 / Socket-370 PCI North Bridge
• Manufacturer: Via

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