![](http://datasheet.mmic.net.cn/330000/PM73487-PI_datasheet_16444394/PM73487-PI_144.png)
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATMTraffic Management Device
Released
Datasheet
132
7. 2. 19. QUEUE ENGINE CONDITION_PRES_BITS
Address: 2A
h
(A8
h
byte)
Read-Only. All bits unless specified Resets to 0.
Format:
Field (Bits)
Description
AB_RAM_PARITY_FAIL
(31)
1
0
The parity on the last AB RAM read was not odd.
The parity on the last AB RAM read was odd.
SF_FABRIC_NOT_SYNC_FAIL
(30)
1
The RX_CELL_START pulse did not arrive at exactly 118 SF_CLK
clock interval. The fabric interface is out of sync because of this condi-
tion.
The RX_CELL_START pulse is occuring at exactly 118 SF_CLK
clocks interval. The fabric interface is in sync.
0
Not used
(29:27)
Driven with a 0.
CH_UNUSED_VCI_SET
(26)
1
A cell was received with a VPI with a VPI with VCC_ENTRY=1 and a
VCI bit set great than that defined by the value of VCI_BITS for that
VPI.
The cell that was just received did not have an unused VCI bit set.
0
QE_TX_SCG_FAIL
(25)
1
An illegal state is present in one of the three Tx Service Class Group
counters. This check asserts that whenever there are no cells in the lower
12 services classes, there must also be no cells in the lower 4 service
classes. This is a non-recoverable state for the device. The device should
be reset and reinitialized.
The Tx Service Class Group counters are currently in a legal state.
0
QE_RX_SCG_FAIL
(24)
1
An illegal state is present in one of the three Rx Service Class Group
counters. This check asserts that whenever there are no cells in the lower
48 services classes, there must also be no cells in the lower 16 service
classes. This is a non-recoverable state for the device. The device should
be reset and reinitialized.
The Rx Service Class Group counters are currently in a legal state.
0
QE_TX_LOWER12_SCG_QD_NE
G
(23)
1
The Tx Lower12 Service Class Group Queue Depth is negative. This is a
non-recoverable state for the device. The device should be reset and
reinitialized.
The Tx Lower12 Service Class Group Queue Depth is non-negative.
0
QE_TX_LOWER8_SCG_QD_NEG
(22)
1
The Tx Lower8 Service Class Group Queue Depth is negative. This is a
non-recoverable state for the device. The device should be reset and
reinitialized.
The Tx Lower8 Service Class Group Queue Depth is non-negative.
0
QE_TX_LOWER4_SCG_QD_NEG
(21)
1
The Tx Lower4 Service Class Group Queue Depth is negative. This is a
non-recoverable state for the device. The device should be reset and
reinitialized.
The Tx Lower4 Service Class Group Queue Depth is non-negative.
0
QE_TX_DIR_QD_NEG
(20)
1
The Tx Direction Queue Depth is negative. This is a non-recoverable
state for the device. The device should be reset and reinitialized.
The Tx Direction Queue Depth is non-negative.
0