Texas Instruments TSB12LV26 manual Asynchronous Request Filter High Register

4.32 Asynchronous Request Filter High Register

The asynchronous request filter high set/clear register is used to enable asynchronous receive requests on a per-node basis, and handles the upper node IDs. When a packet is destined for either the physical request context or the ARRQ context, the source node ID is examined. If the bit corresponding to the node ID is not set in this register, then the packet is not acknowledged and the request is not queued. The node ID comparison is done if the source node is on the same bus as the TSB12LV26. Nonlocal bus sourced packets are not acknowledged unless bit 31 in this register is set. See Table 4±23 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 high
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 high
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:		Asynchronous request filter high
	Type:		Read/Set/Clear
	Offset:		100h	set register
			104h	clear register

	Default:	0000 0000h
		Table 4±23. Asynchronous Request Filter High Register Description
BIT	FIELD NAME		TYPE	DESCRIPTION
31	asynReqAllBuses		RSC	If this bit is set, then all asynchronous requests received by the TSB12LV26 from nonlocal bus
				nodes are accepted.
30	asynReqResource62		RSC	If this bit is set for local bus node number 62, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
29	asynReqResource61		RSC	If this bit is set for local bus node number 61, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
28	asynReqResource60		RSC	If this bit is set for local bus node number 60, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
27	asynReqResource59		RSC	If this bit is set for local bus node number 59, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
26	asynReqResource58		RSC	If this bit is set for local bus node number 58, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
25	asynReqResource57		RSC	If this bit is set for local bus node number 57, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
24	asynReqResource56		RSC	If this bit is set for local bus node number 56, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
23	asynReqResource55		RSC	If this bit is set for local bus node number 55, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
22	asynReqResource54		RSC	If this bit is set for local bus node number 54, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
21	asynReqResource53		RSC	If this bit is set for local bus node number 53, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
20	asynReqResource52		RSC	If this bit is set for local bus node number 52, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.
19	asynReqResource51		RSC	If this bit is set for local bus node number 51, then asynchronous requests received by the
				TSB12LV26 from that node are accepted.

4±28