Texas Instruments TMS320TCI648x manual Interrupt Clearing Sequence for Special Event Interrupts

Models: TMS320TCI648x

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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

Multicast Event Control Symbol received on any port

Port Write In Request received on any port

Port 0 Error

Port 1 Error

Port 2 Error

(TMS320TCI6482 Only)

92Serial RapidIO (SRIO)

1st Step

2 nd Step

3rd Step

Write 1 to clear:

Write 1 to clear:

 

Offset 0x0278

Offset 0x12004

 

ERR_RST_EVNT_ICCR[0]

SP_IP_MODE[4]

 

Write 1 to clear:

Write 1 to clear:

 

Offset 0x0278

Offset 0x12004

 

ERR_RST_EVNT_ICCR[1]

SP_IP_MODE[0]

 

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

 

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

 

Write 1 to clear:

Write 1 to clear any of the

Write 1 to clear:

 

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

 

SPRUE13A –September 2006

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Texas Instruments TMS320TCI648x manual Interrupt Clearing Sequence for Special Event Interrupts, Interrupt Function