Texas Instruments TMS320TCI648x - Manual (Page 200)

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5.69 Port Link Maintenance Request CSR n (SPn_LM_REQ)
SRIO Registers
Each of the four ports is supported by a register of this type (see Table 140 ). SPn_LM_REQ is shown in
Figure 132 and described in Table 141 .
Table 140. SPn_LM_REQ Registers and the Associated Ports
Register Address Offset Associated Port
SP0_LM_REQ 1140h Port 0
SP1_LM_REQ 1160h Port 1
SP2_LM_REQ 1180h Port 2
SP3_LM_REQ 11A0h Port 3
Figure 132. Port Link Maintenance Request CSR n (SPn_LM_REQ)
31 3 2 0
Reserved COMMAND
R-0 R/W-000
LEGEND: R/W = Read/Write; R = Read only; -n = Value after reset
Table 141. Port Link Maintenance Request CSR n (SPn_LM_REQ) Field Descriptions
Bit Field Value Description
31–3 Reserved 0 These read-only bits return 0s when read.
2–0 COMMAND 000b–111b A write to this register generates a link-request control symbol on the corresponding
port interface. Command to be sent in the link-request control symbol. When read,
this field returns the last written value.
Serial RapidIO (SRIO) 200 SPRUE13A – September 2006
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