Serial RapidIO (SRIO) User's Guide

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5.27 RX CPPI Interrupt Condition Routing Registers (RX_CPPI_ICRR and RX_CPPI_ICRR2)
SRIO Registers
Figure 88 and Table 79 summarize the ICRRs for the RXU. These registers route queue interrupts to
interrupt destinations. For example, if ICS6 = 1 in RX_CPPI_ICSR and ICR6 = 0010b in RX_CPPI_ICRR,
the interrupt request from RX buffer descriptor queue 6 is sent to interrupt destination 2. For additional
programming see Section 4.4.1.1 .
Figure 88. RX CPPI Interrupt Condition Routing Registers
RX CPPI Interrupt Condition Routing Register (RX_CPPI_ICRR) (Address Offset 02C0h)
31 28 27 24 23 20 19 16
ICR7 ICR6 ICR5 ICR4
R/W-0000 R/W-0000 R/W-0000 R/W-0000
15 12 11 8 7 4 3 0
ICR3 ICR2 ICR1 ICR0
R/W-0000 R/W-0000 R/W-0000 R/W-0000
RX CPPI Interrupt Condition Routing Register 2 (RX_CPPI_ICRR2) (Address Offset 02C4h)
31 28 27 24 23 20 19 16
ICR15 ICR14 ICR13 ICR12
R/W-0000 R/W-0000 R/W-0000 R/W-0000
15 12 11 8 7 4 3 0
ICR11 ICR10 ICR9 ICR8
R/W-0000 R/W-0000 R/W-0000 R/W-0000
LEGEND: R/W = Read/Write; - n = Value after reset
Table 79. RX CPPI Interrupt Condition Routing Register Field Descriptions
Field Value Description
ICR x Interrupt condition routing. Routes the interrupt request from RX buffer descriptor queue x to one of
(x = 0 to 15) eight interrupt destinations (INTDST0–INTDST7).
0000b INTDST0
0001b INTDST1
0010b INTDST2
0011b INTDST3
0100b INTDST4
0101b INTDST5
0110b INTDST6
0111b INTDST7
1xxxb Reserved
SPRUE13A – September 2006 Serial RapidIO (SRIO) 145
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