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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
Serial RapidIO (SRIO)78 SPRU976 March 2006
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