PM7329 S/UNI-APEX-1K800
DATASHEET
PMC-2010141
ISSUE 2
ATM TRAFFIC MANAGER AND SWITCH
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
ii
10.1
ANY-PHY INTERFACES
............................................................. 49
10.1.1 RECEIVE INTERFACE
..................................................... 49
10.1.2 TRANSMIT INTERFACE
.................................................. 51
10.2
LOOP PORT SCHEDULER
........................................................ 54
10.3
WAN PORT SCHEDULER
.......................................................... 55
10.4
WAN PORT ALIASING
................................................................ 57
10.5
WAN AND LOOP ICI SELECTION
.............................................. 58
10.6
MICROPROCESSOR INTERFACE
............................................ 58
10.7
MEMORY PORT
......................................................................... 62
10.8
SAR ASSIST
............................................................................... 63
10.8.1 TRANSMIT
....................................................................... 63
10.8.2 RECEIVE
.......................................................................... 64
10.9
QUEUE ENGINE
......................................................................... 65
10.9.1 SERVICE ARBITRATION
................................................. 66
10.9.2 CELL QUEUING
............................................................... 67
10.9.3 CLASS SCHEDULING
..................................................... 74
10.9.4 CONGESTION CONTROL
............................................... 76
10.9.5 STATISTICS
..................................................................... 83
10.9.6 MICROPROCESSOR QUEUE BUFFER RE-
ALLOCATION/TEAR DOWN
............................................ 85
10.10 CONTEXT MEMORY SSRAM INTERFACE
................................ 85
10.11 CELL BUFFER SDRAM INTERFACE
......................................... 90
10.12 JTAG TEST ACCESS PORT
....................................................... 93
11
PERFORMANCE
................................................................................... 94
11.1
THROUGHPUT
........................................................................... 94