PM73121ꢀAAL1gator II
Data Sheet
PMC-Sierra, Inc.
PMC-980620
,VVXHꢀꢁ
AAL1 SAR Processor
Field (Bits)
Description
Enable SRTS for this line. (Assert only for UDF-ML or UDF-HS).
SRTS_EN
(2)
1
0
The insertion of the transmit SRTS bits is enabled for this line.
The CSI bits of the odd transmit AAL1 cells are set to 0.
FR_STRUCT
(1:0)
Frame structure mode.
11 Enables SDF-MF. Signaling information is preserved.
01 Enables SDF-FR. No signaling information is preserved.
10 Enables UDF, clear channel, no channelization, no signaling. If this mode
(UDF-ML) is selected, the T_QUEUE_TBL and R_QUEUE_TBL entries
used are found at index = 32 × line. For example, line 3 uses T_QUEUE_
TBL and R_QUEUE_TBL entry 96.
00 Not used.
Initialize to the proper value.
7.5 Transmit Data Structures Summary
Table 22. Transmit Data Structures Summary
Amount
of
Name
R/W Organization
Address
Description
Memory
P_FILL_CHAR
R/W 1 word
2 bytes
0 0004h
The empty bytes in a partially filled cell
are filled with P_FILL_CHAR.
T_ADD_QUEUE
R/W 16 words
32 bytes
0 0030h - 0 003Fh
Bit table of queues to be added to the
calendar queue after a CSD_ATTN
assertion.
T_SEQNUM_TBL
T_COND_SIG
R/W 16 words
32 bytes
0 0020h - 0 002Fh
0 0400h - 0 047Fh
The Transmit Sequence Number Table is
initialized according to a table.
R/W 32 bytes × 8 lines 256 bytes
R/W 32 bytes × 8 lines 256 bytes
This table stores the signaling to be used
when the TX_COND bit in the T_
QUEUE_TBL is set.
T_COND_DATA
0 0480h - 0 04FFh
This table stores the data to be used when
the TX_COND bit in the T_QUEUE_TBL
is set.
Reserved
Reserved
R/W 256 words
512 bytes
4 kBytes
0 0700h - 0 07FFh
0 0800h - 0 0FFFh
Reserved (Frame Advance FIFO).
Reserved (Transmit Calendar).
R/W 8 × 128 × 2
words
Reserved
R/W 8 × 256 bytes
R/W 2 × 32 words
2 kBytes
128 bytes
0 1000h - 0 13FFh
0 1400h - 0 143Fh
Reserved (Transmit Signaling Buffer).
T_OAM_QUEUE
The Transmit OAM Queue contains the
OAM cells to be transmitted.
T_QUEUE_TBL
R/W 256 × 32 words
16 kBytes
0 2000h - 0 3FFFh
The Transmit Queue Table contains all
pointers and variables that are
queue-dependent.
Reserved
R/W 8 × 2 K words
32 kBytes
16 kBytes
0 4000h - 0 7FFFh
Reserved (Transmit Data Buffer).
MATH_TBL
R/W 8 K words
0 C000h - 0 DFFFh The math table is initialized from
formulas.
ꢀꢁꢆ
PMC [ PMC-SIERRA, INC ]
