S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
10 Functional Description .......................................................................................................... 44
10.1 Any-PHY/UTOPIA Interfaces .................................................................................... 44
10.1.1 Transmit Any-PHY/UTOPIA Slave (TXAPS)............................................... 44
10.1.2 Receive Any-PHY/UTOPIA Slave (RXAPS) ............................................... 47
10.1.3 Summary of Any-PHY/UTOPIA Modes....................................................... 50
10.1.4 ANY-PHY/UTOPIA Loopback ..................................................................... 52
10.2 IMA Sub-layer............................................................................................................ 52
10.2.1 Overview..................................................................................................... 52
10.2.2 IDCC scheduler........................................................................................... 53
10.2.3 Transmit IMA Processor (TIMA).................................................................. 54
10.2.4 Receive IMA Data Processor (RDAT)......................................................... 57
10.2.5 Receive IMA Protocol Processor (RIPP) .................................................... 70
10.2.6 Support of IMA Test Pattern Procedure ...................................................... 78
10.2.7 Support of Symmetric/Asymmetric Operation Modes................................. 78
10.2.8 Support of Different IMA Versions............................................................... 78
10.2.9 SDRAM Interface........................................................................................ 79
10.3 Link FIFOs................................................................................................................. 81
10.4 TC Layer.................................................................................................................... 81
10.4.1 TX TC Layer (TTTC)................................................................................... 81
10.4.2 Rx TC Layer (RTTC)................................................................................... 81
10.5 Line Side Physical Layer........................................................................................... 84
10.5.1 TX Clock/Data (TCAS)................................................................................ 84
10.5.2 Rx Clock/Data (RCAS)................................................................................ 84
10.6 JTAG Test Access Port.............................................................................................. 86
10.6.1 JTAG Support ............................................................................................. 86
10.6.2 TAP Controller............................................................................................. 87
10.6.3 Boundary Scan Instructions........................................................................ 89
10.7 Microprocessor Interface........................................................................................... 91
10.7.1 Mapping and link identification.................................................................... 91
10.7.2 Interrupt Driven Error/Status Reporting ...................................................... 92
10.7.3 Registers..................................................................................................... 93
11 Normal Mode Register Description....................................................................................... 96
11.1 Global Registers........................................................................................................ 96
11.2 Master Interrupt Registers....................................................................................... 101
11.3 UTOPIA Interface Registers.................................................................................... 110
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
6
PMC [ PMC-SIERRA, INC ]
