RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
Field (Bits)
Description
R_DBCES_BM_ACT
(10)
Activity detected in the Bit Mask. Used to indicated
whether any channels in the DBCES structure are
active or not. Initialize to “0”.
R_TOT_LEFT
(9:0)
Total bytes minus one remaining in the structure.
Not used in UDF-ML or UDF-HS mode. Initialize to
“0”.
R_SN_CONFIG Word Format (0DH)
This word is maintained by the microprocessor
Field (Bits)
Description
R_CONDQ_DATA
(15:8)
Value of conditioned data inserted into lost cells
depending on the value of INSERT_DATA.
ROBUST_SN_EN
(7)
Set to 1 to enable the “Robust SN algorithm”. Set
to a “0’ for the “Fast SN Algorithm”.
Note: Do not set if DISABLE_SN is set. Only one of
these bits can be set.
INSERT_DATA
(6:5)
Controls the format of the data inserted for lost
cells:
00b Insert xFF.
01b Insert data from R_CONDQ_DATA.
10b Insert old data from receive buffer.
11b
Insert data from R_CONDQ_DATA with the
MSB controlled by the pseudorandom number
algorithm x18 + x7 + 1 (not valid for UDF-HS).
DISABLE_SN
(4)
If set, both “Fast SN Algorithm” and “Robust SN
Algorithm” are disabled. RALP will neither drop nor
insert cells due to SN errors, but will maintain both
R_INCORRECT_SNP and R_INCORRECT_SN
counters. This bit should be set to 0 for AAL0 mode.
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL
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PMC [ PMC-SIERRA, INC ]
