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Freescale Semiconductor MPC8260 User Manual

Page 37

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MPC8260 PowerQUICC II Family Reference Manual, Rev. 2

Freescale Semiconductor

xxxv

Contents

Paragraph
Number

Title

Page

Number

31.8

AAL-1 Memory Structure............................................................................................ 31-22

31.8.1

AAL1 CES Parameter RAM.................................................................................... 31-22

31.9

Receive and Transmit Connection Tables (RCT, TCT) ............................................... 31-25

31.9.1

Receive Connection Table (RCT)............................................................................ 31-26

31.9.1.1

AAL1 CES Protocol-Specific RCT ..................................................................... 31-28

31.9.2

Transmit Connection Table (TCT)........................................................................... 31-31

31.9.2.1

AAL1 CES Protocol-Specific TCT ..................................................................... 31-34

31.10

Outgoing CAS Status Register (OCASSR) ................................................................ 31-35

31.11

Buffer Descriptors........................................................................................................ 31-36

31.11.1

Transmit Buffer Operation....................................................................................... 31-36

31.11.2

Receive Buffer Operation ........................................................................................ 31-37

31.12

ATM Controller Buffers............................................................................................... 31-38

31.12.1

AAL1 CES RxBD.................................................................................................... 31-38

31.12.2

AAL1 CES TxBDs .................................................................................................. 31-40

31.13

AAL1 CES Exceptions ................................................................................................ 31-41

31.13.1

AAL1 CES Interrupt Queue Entry........................................................................... 31-41

31.14

AAL1 Sequence Number (SN) Protection Table ........................................................ 31-42

31.15

Internal AAL1 CES Statistics Tables........................................................................... 31-43

31.16

External AAL1 CES Statistics Tables.......................................................................... 31-44

31.17

CES-Specific Additions to the MCC ........................................................................... 31-44

31.18

Application Considerations.......................................................................................... 31-44

Chapter 32

ATM AAL2

32.1

Introduction.................................................................................................................... 32-1

32.2

Features .......................................................................................................................... 32-3

32.3

AAL2 Transmitter.......................................................................................................... 32-5

32.3.1

Transmitter Overview ................................................................................................ 32-5

32.3.2

Transmit Priority Mechanism .................................................................................... 32-5

32.3.2.1

Round Robin Priority............................................................................................. 32-6

32.3.2.2

Fixed Priority ......................................................................................................... 32-6

32.3.3

Partial Fill Mode (PFM) ............................................................................................ 32-7

32.3.4

No STF Mode ............................................................................................................ 32-8

32.3.5

AAL2 Tx Data Structures .......................................................................................... 32-8

32.3.5.1

AAL2 Protocol-Specific TCT................................................................................ 32-9

32.3.5.2

CPS Tx Queue Descriptor ................................................................................... 32-13

32.3.5.3

CPS Buffer Structure ........................................................................................... 32-15

32.3.5.4

SSSAR Tx Queue Descriptor .............................................................................. 32-17

32.3.5.5

SSSAR Transmit Buffer Descriptor..................................................................... 32-19

32.4

AAL2 Receiver ............................................................................................................ 32-20