![](http://datasheet.mmic.net.cn/330000/PM73122_datasheet_16444367/PM73122_267.png)
RELEASED
PM73122 AAL1GATOR-32
DATASHEET
PMC-1981419
ISSUE 7
32 LINK CES/DBCES AAL1 SAR PROCESSOR
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
242
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 (0D
H
)
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:
00
b
01
b
10
b
11
b
MSB controlled by the pseudorandom number
algorithm x
18
+ x
7
+ 1 (not valid for UDF-HS).
Insert xFF.
Insert data from R_CONDQ_DATA.
Insert old data from receive buffer.
Insert data from R_CONDQ_DATA with the
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.