參數(shù)資料
型號: IBM21P100BGB
元件分類: 總線控制器
英文描述: PCI BUS CONTROLLER, PBGA304
封裝: 31 X 31 MM, HEAT SINK, PLASTIC, BGA-304
文件頁數(shù): 110/140頁
文件大?。?/td> 2032K
代理商: IBM21P100BGB
IBM21P100BGB
IBM 133 PCI-X Bridge R1.1
ppb11_pcix_regs.fm.03
July 9, 2001
Configuration Registers
Page 63 of 131
5.2.5.6 Arbiter Priority Register
The Arbiter Priority register indicates whether high or low priority is assigned to the corresponding request of
the internal secondary bus arbitration logic on the bridge.
Address Offset
x‘58’
Access
Read/Write
Reset Value
x‘01’
Res
e
rv
ed
A
rbit
e
r
P
ri
or
it
y
6
A
rbit
e
r
P
ri
or
it
y
5
A
rbit
e
r
P
ri
or
it
y
4
A
rbit
e
r
P
ri
or
it
y
3
A
rbit
e
r
P
ri
or
it
y
2
A
rbit
e
r
P
ri
or
it
y
1
A
rbit
e
r
P
ri
or
it
y
0
7654321
0
Bit(s)
Access
Field Name and Description
7
RO
Reserved
6RW
Arbiter Priority 6
0
Low priority request
1
High priority request
5RW
Arbiter Priority 5
0
Low priority request
1
High priority request
4RW
Arbiter Priority 4
0
Low priority request
1
High priority request
3RW
Arbiter Priority 3
0
Low priority request
1
High priority request
2RW
Arbiter Priority 2
0
Low priority request
1
High priority request
1RW
Arbiter Priority 1
0
Low priority request
1
High priority request
0RW
Arbiter Priority 0
This bit indicates the priority for the internal bridge requests.
0
Low priority request
1
High priority request
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