Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
Address: 10h (40h byte)
Type: Read/Write
Format: Refer to the following table.
Field (Bits)
Not used
Description
Driven with a 0. Mask on reads to maintain software compatibility with future versions.
(31:10)
WD_TIME
(9:8)
The period during which time the TATM_CLAV(3:0) must be asserted for a given output.
Initialize to a setting that allows the slowest PHY device attached to the UTOPIA interface
to respond in time.
0h
1h
2h
3h
Set to a setting tolerant to DS0 outputs; tolerance equals 52,000 cell times.
Set to a setting tolerant to DS1 outputs; tolerance equals 5000 cell times.
Set to a setting tolerant to OC-3 outputs; tolerance equals 32 cell times.
Disable the watchdog.
Resets to 00b.
OUT_CHAN_INSERTION
(7)
1
Insert Tx Output Channel number in the 16 bit HEC/UDF field to be used
downstream
0
Insert FFFFh in the HEC/UDF field.
Resets to 0.
TDM
(6)
1
Perform UTOPIA TDM Plus servicing. The TDM feature provides an addi-
tional level of servicing to compliment 2-level priority servicing. The suite
of phy addresses included in the TDM table is based on UTENABLE
Perform only 2-level priority servicing.
0
Resets to 0.
MSP_MODE
(5)
1
Perform MSP (four cell available lines used). Use this setting when using
direct status indication.
0
Perform UTOPIA Level 2 MPHY standard polling (one cell available line
used).
Resets to 0.
CHK_HEC
(4)
1
0
Check the HEC of incoming cells.
Ignore the HEC of incoming cells. Use this setting when connecting to devices
that do not drive the proper HEC on the UTOPIA bus or when the HEC field is
used for other purposes.
Resets to 0.
BACKPLANE_MODE
(3)
NOTE: This feature was excluded from the QRT testing program.
1
Allow extra latency across the UTOPIA interface necessary to implement a
25 MHz (maximum) backplane.
0
Use normal UTOPIA Level 2 timing.
Resets to 0.
TX_OC_12C_MODE
(2)
1
The device is connected to an OC-12C line at transmit UTOPIA address 0.
This overrides the setting of the UTOPIA_2 bit.
0
The device is connected to a normal transmit UTOPIA Level 2 interface.
Resets to 0.
RX_OC_12C_MODE
(1)
1
The device is connected to an OC-12C line at receive UTOPIA address 0. This
overrides the setting of the UTOPIA_2 bit.
0
The device is connected to a normal receive UTOPIA Level 2 interface.
Resets to 0.
118
PMC [ PMC-SIERRA, INC ]
