Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
7.2.8 CONDITION_PRES_BITS
Each interrupt has a condition present bit that indicates the condition is present now. Some fail-
ures are transitory, so this bit may read clear even though the condition is occurring frequently.
Address: 8h (20h byte)
Type: Read-only. All bits reset to 0, unless otherwise specified.
Format: Refer to the following table.
Field (Bits)
Description
ACK_LIVE_FAIL
(31:28)
Bit 31 corresponds to port 3, bit 30 corresponds to port 2, bit 29 corresponds to port 1
and bit 28 corresponds to port 0 as follows:
1
No ACK, MNACK, or ONACK was received on the same cell time that a
unicast cell was sent. This indicates that the end-to-end path may be bad.
Normal operation.
0
Refer to “Unacknowledged Cell Detection” on page 48, “Liveness of Backpressure Sig-
nal” on page 48, “BP_ACK Remote Failure Detection” on page 50, and to Table 2 on
page 50 for more information about the ACK_LIVE_FAIL interrupt.
UT_SOC_FAIL
(27)
1
0
Failure was detected on the RATM_SOC signal.
Normal operation.
UT_CLK_FAIL
(26)
1
0
Failure was detected on the UTOPIA clock (ATM_CLK).
Normal operation.
SF_CLK_FAIL
(25)
1
0
Failure was detected on the switch fabric clock (SE_CLK).
Normal operation.
RX_UTOP_HEC_FAIL
(24)
1
0
The last HEC on the receive UTOPIA interface was bad.
The last HEC on the receive UTOPIA interface was good.
RX_DRAM_PARITY_FAIL
(23)
1
0
The last parity check on the RX_DRAM was bad.
The last parity check on the RX_DRAM was good.
TX_DRAM_PARITY_FAIL
(22)
1
0
The last parity check on the TX_DRAM was bad.
The last parity check on the TX_DRAM was good.
AL_RAM_PARITY_FAIL
(21)
1
0
The last parity check on the AL_RAM was bad.
The last parity check on the AL_RAM was good.
CH_RAM_PARITY_FAIL
(20)
1
0
The last parity check on the CH_RAM was bad.
The last parity check on the CH_RAM was good.
TX_PARITY_FAIL
(19:16)
Bit 19 corresponds to port 3, bit 18 corresponds to port 2, bit 17 corresponds to port 1
and bit 16 corresponds to port 0 as follows:
1
The transmit parity calculated over the first 12 nibbles of the cell header
coming into the QRT on SE_D_IN#(3:0) was bad during the last valid cell
time.
0
1
The transmit parity was good during the last valid cell time.
BP_IGNORED
(15)
The backpressure was ignored during the last cell time, because a cell was
received in violation of the backpressure that had been given.
The backpressure was not ignored during the last cell time.
0
111
PMC [ PMC-SIERRA, INC ]
