PCI7610 Datasheet, PDF (196/240 Pages) Texas Instruments – PC Card, UltraMedia, and Integrated 1394a-2000 OHCI Two-Port PHY/Link-Layer Controller

8.36 Asynchronous Request Filter Low Register
The asynchronous request filter low set/clear register enables asynchronous receive requests on a per-node basis,
and handles the lower node IDs. Other than filtering different node IDs, this register behaves identically to the
asynchronous request filter high register. See Table 8−28 for a complete description of the register contents.
Bit
Name
Type
Default
Bit
Name
Type
Default
31
RSC
0
15
RSC
0
30
RSC
0
14
RSC
0
29
RSC
0
13
RSC
0
28
RSC
0
12
RSC
0
27
RSC
0
11
RSC
0
26 25 24 23 22 21
Asynchronous request filter low
RSC RSC RSC RSC RSC RSC
0
0
0
0
0
0
10
9
8
7
6
5
Asynchronous request filter low
RSC RSC RSC RSC RSC RSC
0
0
0
0
0
0
20
RSC
0
4
RSC
0
19
RSC
0
3
RSC
0
18
RSC
0
2
RSC
0
17
RSC
0
1
RSC
0
16
RSC
0
0
RSC
0
BIT
31
30
29−2
1
0
Register:
Offset:
Type:
Default:
Asynchronous request filter low
108h set register
10Ch clear register
Read/Set/Clear
0000 0000h
Table 8−28. Asynchronous Request Filter Low Register Description
FIELD NAME
asynReqResource31
asynReqResource30
asynReqResourcen
asynReqResource1
asynReqResource0
TYPE
RSC
RSC
RSC
RSC
RSC
DESCRIPTION
If bit 31 is set to 1 for local bus node number 31, asynchronous requests received by the controller
from that node are accepted.
If bit 30 is set to 1 for local bus node number 30, asynchronous requests received by the controller
from that node are accepted.
Bits 29 through 2 (asynReqResourcen, where n = 29, 28, 27, …, 2) follow the same pattern as
bits 31 and 30.
If bit 1 is set to 1 for local bus node number 1, asynchronous requests received by the controller
from that node are accepted.
If bit 0 is set to 1 for local bus node number 0, asynchronous requests received by the controller
from that node are accepted.
8−34