Serial RapidIO (SRIO) User's Guide

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Interrupt Conditions
The interrupt status bits found in the ERR_RST_EVNT (0x0270) can be cleared by writing to the ICCR
register (0x0278) in the same manner as other interrupts. However, in order for new event detection and
interrupt generation to occur for these special interrupts, additional register bits must be cleared. The
following table notes the additional interrupt source register bits that need to be cleared and the
appropriated sequence. These are all the bits that can cause the ERR_RST_EVNT status bits to be set
Table 38. Interrupt Clearing Sequence for Special Event Interrupts
Interrupt Function 1
st
Step 2
nd
Step 3
rd
Step
Multicast Event Control Symbol Write 1 to clear: Write 1 to clear:
received on any port
Offset 0x0278 Offset 0x12004
ERR_RST_EVNT_ICCR[0] SP_IP_MODE[4]
Port Write In Request received Write 1 to clear: Write 1 to clear:
on any port
Offset 0x0278 Offset 0x12004
ERR_RST_EVNT_ICCR[1] SP_IP_MODE[0]
Port 0 Error Write 1 to clear: Write 1 to clear any of the Write 1 to clear:
following possible bits:
Offset 0x0278 Offset 0x2040 Offset 0x14004
ERR_RST_EVNT_ICCR[8] SP0_ERR_STAT[2] – Fatal SP0_CTL_INDEP[6]
error
SP0_ERR_STAT[25] – Failed
Threshold
SP0_ERR_STAT[24] –
Degraded Threshold
Offset 0x14004
SP0_CTL_INDEP[20] – Illegal
Transaction
SP0_CTL_INDEP[16] – Max
Retry Error
Port 1 Error Write 1 to clear: Write 1 to clear any of the Write 1 to clear:
following possible bits:
Offset 0x0278 Offset 0x2080 Offset 0x14104
ERR_RST_EVNT_ICCR[9] SP1_ERR_STAT[2] – Fatal SP1_CTL_INDEP[6]
error
SP1_ERR_STAT[25] – Failed
Threshold
SP1_ERR_STAT[24] –
Degraded Threshold
Offset 0x14104
SP1_CTL_INDEP[20] – Illegal
Transaction
SP1_CTL_INDEP[16] – Max
Retry Error
Port 2 Error Write 1 to clear: Write 1 to clear any of the Write 1 to clear:
(TMS320TCI6482 Only) following possible bits:
Offset 0x0278 Offset 0x20C0 Offset 0x14204
ERR_RST_EVNT_ICCR[10] SP2_ERR_STAT[2] – Fatal SP2_CTL_INDEP[6]
error
SP2_ERR_STAT[25] – Failed
Threshold
SP2_ERR_STAT[24] –
Degraded Threshold
Offset 0x14204
SP2_CTL_INDEP[20] – Illegal
Transaction
SP2_CTL_INDEP[16] – Max
Retry Error
Serial RapidIO (SRIO)92 SPRUE13A – September 2006
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