Texas Instruments TMS320C645x manual Mailbox-to-Queue Mapping Register Ln RXUMAPLn

Models: TMS320C645x

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SRIO Registers

5.61Mailbox-to-Queue Mapping Register Ln (RXU_MAP_Ln)

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

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Texas Instruments TMS320C645x manual Mailbox-to-Queue Mapping Register Ln RXUMAPLn