Serial RapidIO (SRIO) User's Guide

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5.50 Mailbox to Queue Mapping Registers (RXU_MAP_L n and RXU_MAP_H n)
SRIO Registers
Messages addressed to any of the 64 mailbox locations can be received on any of the RapidIO ports
simultaneously. Packets are handled sequentially in order of receipt. A block of 32 mappers directs the
inbound messages to the appropriate RX queues. After a device reset, software must configure each of
the mappers to map incoming messages with selected mailbox and letter numbers to the desired queue.
For a given mapper n, a pair of mailbox to queue mapping registers fully define the configuration for that
mapper: a low register (RXU_MAP_L n) and a high register (RXU_MAP_H n). Table 118 lists all of these
register pairs and the associated RX mappers. The general form of an RXU_MAP register pair is
summarized by Figure 113 , Table 119 , and Table 120 . For additional programming information, see
Section 2.3.4.1 .
Table 118. Mailbox to Queue Mapping Registers and the Associated RX
Mappers
Register Address Offset Associated RX Mapper
RXU_MAP_L0 0800h Mapper 0
RXU_MAP_H0 0804h Mapper 0
RXU_MAP_L1 0808h Mapper 1
RXU_MAP_H1 080Ch Mapper 1
RXU_MAP_L2 0810h Mapper 2
RXU_MAP_H2 0814h Mapper 2
RXU_MAP_L3 0818h Mapper 3
RXU_MAP_H3 081Ch Mapper 3
RXU_MAP_L4 0820h Mapper 4
RXU_MAP_H4 0824h Mapper 4
RXU_MAP_L5 0828h Mapper 5
RXU_MAP_H5 082Ch Mapper 5
RXU_MAP_L6 0830h Mapper 6
RXU_MAP_H6 0834h Mapper 6
RXU_MAP_L7 0838h Mapper 7
RXU_MAP_H7 083Ch Mapper 7
RXU_MAP_L8 0840h Mapper 8
RXU_MAP_H8 0844h Mapper 8
RXU_MAP_L9 0848h Mapper 9
RXU_MAP_H9 084Ch Mapper 9
RXU_MAP_L10 0850h Mapper 10
RXU_MAP_H10 0854h Mapper 10
RXU_MAP_L11 0858h Mapper 11
RXU_MAP_H11 085Ch Mapper 11
RXU_MAP_L12 0860h Mapper 12
RXU_MAP_H12 0864h Mapper 12
RXU_MAP_L13 0868h Mapper 13
RXU_MAP_H13 086Ch Mapper 13
RXU_MAP_L14 0870h Mapper 14
RXU_MAP_H14 0874h Mapper 14
RXU_MAP_L15 0878h Mapper 15
RXU_MAP_H15 087Ch Mapper 15
RXU_MAP_L16 0880h Mapper 16
RXU_MAP_H16 0884h Mapper 16
RXU_MAP_L17 0888h Mapper 17
RXU_MAP_H17 088Ch Mapper 17
SPRUE13A – September 2006 Serial RapidIO (SRIO) 177
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