Texas Instruments TMS320C645X - Manual (Page 185)

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5.83 Port Local AckID Status CSR n (SPn_ACKID_STAT)
SRIO Registers
Each of the four ports is supported by a register of this type.
Figure 139. Port Local AckID Status CSR n (SPn_ACKID_STAT)
31-29 28-24 23-16
Reserved INBOUND_ACKID Reserved
R-0x00 RW-0x00 R-0x00
LEGEND: R = Read only; -n = value after reset
15-13 12-8 7-5 4-0
Reserved OUTSTANDING_ACKID Reserved OUTBOUND_ACKID
R-0x00 RW-0x00 R-0x00 RW-0x00
LEGEND: R = Read only; -n = value after reset
Table 113. Port Local AckID Status CSR n (SPn_ACKID_STAT) Field Descriptions
Bit Field Value Description
31-29 Reserved Reserved
28-24 INBOUND_ACKI Input port next expected ackID value
D
23-13 Reserved Reserved
12-8 OUTSTANDING_ Output port unacknowledged ackID status. Next expected acknowledge control symbol ackID field
ACKID that indicates the ackID value expected in the next received acknowledge control symbol.
7-5 Reserved Reserved
4-0 OUTBOUND_AC Output port next transmitted ackID value. Software writing this value can force retransmission of
KID outstanding unacknowledged packets in order to manually implement error recovery.
SPRU976 – March 2006 Serial RapidIO (SRIO) 185
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