Serial RapidIO (SRIO) User's Guide

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SRIO Registers
Table 73. LSU Interrupt Condition Status Register (LSU_ICSR) Field Descriptions (continued)
Bit Field Value Description
19 ICS19 0 LSU3 interrupt condition not detected.
1 LSU3 interrupt condition detected. Transaction was not sent due to unsupported transaction type or
invalid field encoding.
18 ICS18 0 LSU3 interrupt condition not detected.
1 LSU3 interrupt condition detected. Transaction was not sent due to Xoff condition.
17 ICS17 0 LSU3 interrupt condition not detected.
1 LSU3 interrupt condition detected. Non-posted transaction received ERROR response, or error in
response payload.
16 ICS16 0 LSU3 interrupt condition not detected.
1 LSU3 interrupt condition detected. Transaction complete, No errors (posted/non-posted). Enable for
this interrupt is ultimately controlled by the Interrupt Req bit of LSU3_REG4. This allows
enabling/disabling on a per request basis. For optimum LSU performance, interrupt pacing should
not be used on the LSU interrupts.
15 ICS15 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Packet not sent due to unavailable outbound credit at given
priority.
14 ICS14 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Retry Doorbell response received or Atomic test-and-swap was
not allowed (semaphore in use).
13 ICS13 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Transaction was not sent due to DMA data transfer error.
12 ICS12 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Transaction timeout occurred.
11 ICS11 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Transaction was not sent due to unsupported transaction type or
invalid field encoding.
10 ICS10 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Transaction was not sent due to Xoff condition.
9 ICS9 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Non-posted transaction received ERROR response, or error in
response payload.
8 ICS8 0 LSU2 interrupt condition not detected.
1 LSU2 interrupt condition detected. Transaction complete, No errors (posted/non-posted). Enable for
this interrupt is ultimately controlled by the Interrupt Req bit of LSU2_REG4. This allows
enabling/disabling on a per request basis. For optimum LSU performance, interrupt pacing should
not be used on the LSU interrupts.
7 ICS7 0 LSU1 interrupt condition not detected.
1 LSU1 interrupt condition detected. Packet not sent due to unavailable outbound credit at given
priority.
6 ICS6 0 LSU1 interrupt condition not detected.
1 LSU1 interrupt condition detected. Retry Doorbell response received or Atomic test-and-swap was
not allowed (semaphore in use).
5 ICS5 0 LSU1 interrupt condition not detected.
1 LSU1 interrupt condition detected. Transaction was not sent due to DMA data transfer error.
4 ICS4 0 LSU1 interrupt condition not detected.
1 LSU1 interrupt condition detected. Transaction timeout occurred.
3 ICS3 0 LSU1 interrupt condition not detected.
1 LSU1 interrupt condition detected. Transaction was not sent due to unsupported transaction type or
invalid field encoding.
2 ICS2 0 LSU1 interrupt condition not detected.
1 LSU1 interrupt condition detected. Transaction was not sent due to Xoff condition.
SPRUE13A – September 2006 Serial RapidIO (SRIO) 139
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