PM73121ꢀAAL1gator II
Data Sheet
PMC-Sierra, Inc.
PMC-980620
,VVXHꢀꢁ
AAL1 SAR Processor
7.6.8 T_QUEUE_TBL
Organization: 256 × 32 words
Base address: 2000h
Index: 20h
Type: Read/Write
Function: Configures the VCs.
Format: Each queue will be allocated 32 consecutive words.
Offset
Name
Description
(Data pointer.) Initialize to FFFF each time this queue is initialized.
0h
1h
Reserved
Not used
Initialize to 0 each time this queue is initialized to maintain future software
compatibility.
2h
3h
T_COND_CELL_CNT
A 16-bit rollover count of conditioned cells transmitted.
T_SUPPRESSED_CELL_CNT
A 16-bit rollover count of cells not sent because of a line resynchronization. Or,
if in UDF-HS mode, a 16-bit rollover count of cells not sent because TX_
ACTIVE is not set. This counter also counts when cells are not sent because
SUPPRESS_TRANSMISSION is set.
4h
Not used
Initialize to 0 each time this queue is initialized to maintain future software
compatibility.
5h
6h
7h
8h
9h
Ah
Bh
Reserved
(Sequence number.) Initialize to 0 each time this queue is initialized.
The configuration of the current queue. Initialize to the proper value.
A 16-bit count of the cells transmitted.
QUEUE_CONFIG
T_CELL_CNT
TX_HEAD(2:1)
TX_HEAD(4:3)
TX_HEAD(5)
QUE_CREDITS
Header byte 1 in bits 15:8, header byte 2 in bits 7:0.
Header byte 3 in bits 15:8, header byte 4 in bits 7:0.
Header byte 5 (pre-calculated HEC) in bits 15:8.
A 10-bit quantity representing the number of byte credits accumulated for the
queue.
Ch
Dh
Eh
Fh
CSD_CONFIG
Stores the average number of bytes in each cell, and carries the number of DS0s
for this queue.
Not used
Initialize to 0 each time this queue is initialized to maintain future software
compatibility.
T_CHAN_ALLOC(15:0)
T_CHAN_ALLOC(31:16)
A bit table with a bit set per DS0 allocated to this queue for DS0s 15:0 on the line
defined by queue ÷ 32.
A bit table with a bit set per DS0 allocated to this queue for DS0s 31:16 on the
line defined by queue ÷ 32.
10h
11h
12h
T_CHAN_LEFT(15:0)
T_CHAN_LEFT(31:16)
IDLE_CONFIG
Initialize to the same value as T_CHAN_ALLOC(15:0).
Initialize to the same value as T_CHAN_ALLOC(31:16).
Controls transmission of data.
13h-1Fh Not used
Initialize to 0 each time this queue is initialized.
NOTE: All registers are right justified, with any unused bits set to 0.
ꢀꢂꢃ
PMC [ PMC-SIERRA, INC ]
