38 physical request filter low register – Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual
Page 217
8−37
8.38 Physical Request Filter Low Register
The physical request filter low set/clear register enables physical receive requests on a per-node basis, and handles
the lower node IDs. When a packet is destined for the physical request context, and the node ID has been compared
against the asynchronous request filter registers, then the node ID comparison is done again with this register. If the
bit corresponding to the node ID is not set to 1 in this register, then the request is handled by the asynchronous request
context instead of the physical request context. See Table 8−30 for a complete description of the register contents.
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
Physical request filter low
Type
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Physical request filter low
Type
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
RSC
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Physical request filter low
Offset:
118h
set register
11Ch
clear register
Type:
Read/Set/Clear
Default:
0000 0000h
Table 8−30. Physical Request Filter Low Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31
physReqResource31
RSC
If bit 31 is set to 1 for local bus node number 31, physical requests received by the controller from
that node are handled through the physical request context.
30
physReqResource30
RSC
If bit 30 is set to 1 for local bus node number 30, physical requests received by the controller from
that node are handled through the physical request context.
29−2
physReqResourcen
RSC
Bits 29 through 2 (physReqResourcen, where n = 29, 28, 27,
…
, 2) follow the same pattern as
bits 31 and 30.
1
physReqResource1
RSC
If bit 1 is set to 1 for local bus node number 1, physical requests received by the controller from
that node are handled through the physical request context.
0
physReqResource0
RSC
If bit 0 is set to 1 for local bus node number 0, physical requests received by the controller from
that node are handled through the physical request context.
8.39 Physical Upper Bound Register (Optional Register)
The physical upper bound register is an optional register and is not implemented. This register returns all 0s when
read.
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
Physical upper bound
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Physical upper bound
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Physical upper bound
Offset:
120h
Type:
Read-only
Default:
0000 0000h