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Interrupt Conditions

Figure 47. RX_CPPI Interrupts Using Messaging Mode Data Transfers

RX_CPPI Interrupt Condition Status Registers (ICSR) (Address Offset 0x0240)

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-0

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

ICS15

ICS14

ICS13

ICS12

ICS11

ICS10

ICS9

ICS8

ICS7

ICS6

ICS5

ICS4

ICS3

ICS2

ICS1

ICS0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

LEGEND: R = Read, W = Write, n = value at reset

RX_CPPI Interrupt Condition Clear Registers (ICCR) (Address Offset 0x0248)

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-0

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

ICC15

ICC14

ICC13

ICC12

ICC11

ICC10

ICC9

ICC8

ICC7

ICC6

ICC5

ICC4

ICC3

ICC2

ICC1

ICC0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

LEGEND: R = Read, W = Write, n = value at reset

Where ICS0 - RX CPPI interrupt, buffer descriptor queue 0, through ICS15 - RX CPPI interrupt, buffer descriptor queue 15.

Clearing of any ICSR bit depends on the CPU writing the value of last buffer descriptor processed to the RX DMA State CP. Port hardware clears the ICSR bit only if the CP value written by the CPU equals the port written value in the RX DMA State CP register.

Figure 48. TX _CPPI Interrupts Using Messaging Mode Data Transfers

TX_CPPI Interrupt Condition Status Registers (ICSR) (Address Offset 0x0250)

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-0

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

ICS15

ICS14

ICS13

ICS12

ICS11

ICS10

ICS9

ICS8

ICS7

ICS6

ICS5

ICS4

ICS3

ICS2

ICS1

ICS0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

LEGEND: R = Read, W = Write, n = value at reset

TX_CPPI Interrupt Condition Clear Registers (ICCR) (Address Offset 0x0258)

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-0

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

ICC15

ICC14

ICC13

ICC12

ICC11

ICC10

ICC9

ICC8

ICC7

ICC6

ICC5

ICC4

ICC3

ICC2

ICC1

ICC0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

W-0

LEGEND: R = Read, W = Write, n = value at reset

78

Serial RapidIO (SRIO)

SPRU976 –March 2006

 

 

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Texas Instruments TMS320C645x manual Interrupt Conditions