
OHCI Registers
181
September 2005
SCPS110
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 828 for a complete description of the register
contents.
OHCI register offset:
108h
set register
10Ch
clear register
Register type:
Read/Set/Clear
Default value:
0000 0000h
BIT NUMBER
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESET STATE
0
BIT NUMBER
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESET STATE
0
Table 828. Asynchronous Request Filter Low Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31
asynReqResource31
RSC
If bit 31 is set to 1b for local bus node number 31, asynchronous requests received by the controller
from that node are accepted.
30
asynReqResource30
RSC
If bit 30 is set to 1b for local bus node number 30, asynchronous requests received by the controller
from that node are accepted.
292
asynReqResourcen
RSC
Bits 29 through 2 (asynReqResourcen, where n = 29, 28, 27,
…, 2) follow the same pattern as
bits 31 and 30.
1
asynReqResource1
RSC
If bit 1 is set to 1b for local bus node number 1, asynchronous requests received by the controller
from that node are accepted.
0
asynReqResource0
RSC
If bit 0 is set to 1b for local bus node number 0, asynchronous requests received by the controller
from that node are accepted.