Texas Instruments TMS320C645X - Manual (Page 163)

www.ti.com
5.61 Mailbox-to-Queue Mapping Register Ln (RXU_MAP_Ln)
SRIO Registers
Figure 117. Mailbox-to-Queue Mapping Register Ln (RXU_MAP_Ln)
31-30 29-24 23-22 21-16
LETTER_MAS MAILBOX_MASK LETTER MAILBOX
K
RW-0x03 RW-0x3F RW-0x00 RW-0x00
LEGEND: R = Read only; -n = value after reset
15-0
SOURCEID
RW-0x00
LEGEND: R = Read only; -n = value after reset
Table 91. Mailbox-to-Queue Mapping Register Ln (RXU_MAP_Ln) Field Descriptions
Bit Field Value Description
31-30 LETTER_MASK Allowed letter mask for this mapping register
29-24 MAILBOX_MASK Allowed mail box mask for this mapping register
23-22 LETTER Allowed letter for this mapping register
21-16 MAILBOX Allowed mail box for this mapping register
15-0 SOURCEID The SOURCEID field is used to indicate which external device has access to the mapping entry
and corresponding queue. A compare is performed between the sourceID of the incoming message
packet and each relevant mailbox/letter table mapping entry SOURCEID field. A miscompare
results in an ERROR response back to the sender and the transaction is logged in the Logical
Layer Error Management capture registers.
SPRU976 – March 2006 Serial RapidIO (SRIO) 163
Submit Documentation Feedback