Host Controller Data Manual

4–30

4.33 Asynchronous Request Filter Low Register

The asynchronous request filter low set/clear register is used to enable 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 4–24 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 Asynchronous 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 Asynchronous 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

Type: Read/Set/Clear

Offset: 108h set register

10Ch clear register

Default: 0000 0000h

Table 4–24. Asynchronous Request Filter Low Register Description

BIT FIELD NAME TYPE DESCRIPTION

31 asynReqResource31 RSC

If this bit is set for local bus node number 31, then asynchronous requests received by the

TSB12LV26 from that node are accepted.

30 asynReqResource30 RSC

If this bit is set for local bus node number 30, then asynchronous requests received by the

TSB12LV26 from that node are accepted.

Bits 29 through 2 follow the same pattern.

1 asynReqResource1 RSC

If this bit is set for local bus node number 1, then asynchronous requests received by the

TSB12LV26 from that node are accepted.

0 asynReqResource0 RSC

If this bit is set for local bus node number 0, then asynchronous requests received by the

TSB12LV26 from that node are accepted.