Serial RapidIO (SRIO) User's Guide

www.ti.com
SRIO Registers
Table 120. Mailbox-to-Queue Mapping Register H n (RXU_MAP_H n) Field Descriptions (continued)
Bit Field Value Description
7–6 Reserved 0 These read-only bits return 0s when read.
5–2 QUEUE_ID 0–15 Queue identification number. This field selects which of the 16 RX buffer
queues is associated with mapper n.
1 PROMISCUOUS Promiscuous access
0 Mapper n checks the incoming sourceID (access is restricted to one
sender). When determining which transactions to service, the mapper
checks the sourceID in addition to the mailbox and letter qualifications.
1 Mapper n ignores the incoming sourceID (access is available to any
sender). When determining which transactions to service, the mapper
checks only the mailbox and letter qualifications.
0 SEGMENT_MAPPING Segment mapping
0 Single-segment messaging. Up to 64 mailboxes are available. All six
bits of the MAILBOX and MAILBOX_MASK fields of RXU_MAP_L n are
valid.
1 Multi-segment messaging. Up to 4 mailboxes are available. Only the 2
LSBs of the MAILBOX and MAILBOX_MASK fields of RXU_MAP_L n
are valid.
Serial RapidIO (SRIO)180 SPRUE13A – September 2006
Submit Documentation Feedback