RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
Field (Bits)
Description
NUM_CHAN
(15:10)
A 6-bit integer specifying the number of DS0
channels being carried by this queue. If a queue
serves seven DS0s, initialize this field to 7. This
field has to be set to 32 in
UDF-ML mode. It is not used in UDF-HS mode.
AVG_SUB_VALU
(9:0)
A 10-bit integer representing the average number of
data bytes per cell measured in eighths. The three
LSBs represent bits after the fixed decimal point.
Initialize to 46.875 (0101110.111) for full cells when
in non-DBCES SDF-FR or SDF-MF mode. When in
DBCES mode initialize to 47. Initialize to 47
(0101111.000) for full cells when in UDF-ML mode.
For AAL0 cells, this value is 48 (0110000.000). For
partial cells, this value is the same as the partially
filled value x 8. This field is not used in UDF-HS
mode.
T_CHANNEL_ALLOC(15:0) Word Format (0EH)
This word is maintained by the microprocessor.
Field (Bits)
Description
T_CHANNEL_ALLOC
(15:0)
A bit table with a bit set per DS0 allocated to this
queue for DS0s 15 to 0 on the line defined by
queue / 32. Initialize to the proper value for SDF-MF
and SDF-FR modes and to FFFFh for UDF-ML and
UDF-HS modes.
T_CHANNEL_ALLOC(31:16) Word Format (0FH)
This word is maintained by the microprocessor.
Field (Bits)
Description
T_CHANNEL_ALLOC
(31:16)
A bit table with a bit set per DS0 allocated to this
queue for DS0s 31 to 16 on the line defined by
queue / 32. Initialize to the proper value for SDF-MF
and SDF-FR modes and to FFFFh for UDF-ML and
UDF-HS modes.
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL
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PMC [ PMC-SIERRA, INC ]
