Freescale-semiconductor MPC8260 Manual de usuario Pagina 39

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MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor xxxvii
Contents
Paragraph
Number Title
Page
Number
33.3.2.4 Differences in CTC Operation............................................................................. 33-16
33.3.3 Receive Architecture................................................................................................ 33-17
33.3.3.1 Cell Reception Task............................................................................................. 33-17
33.3.3.2 Cell Processing Activation Function ................................................................... 33-22
33.3.3.2.1 On-Demand Cell Processing ........................................................................... 33-22
33.3.3.2.2 IDCR-Regulated Cell Processing .................................................................... 33-23
33.3.3.3 Cell Processing Task............................................................................................ 33-24
33.4 IMA Programming Model ........................................................................................... 33-24
33.4.1 Data Structure Organization .................................................................................... 33-24
33.4.2 IMA FCC Programming.......................................................................................... 33-26
33.4.2.1 FCC Registers ..................................................................................................... 33-26
33.4.2.1.1 FPSMRx .......................................................................................................... 33-26
33.4.2.1.2 FTIRRx............................................................................................................ 33-26
33.4.2.2 FCC Parameters................................................................................................... 33-26
33.4.2.2.1 TCELL_TMP_BASE and RCELL_TMP_BASE ........................................... 33-26
33.4.2.2.2 GMODE........................................................................................................... 33-26
33.4.2.3 IMA-Specific FCC Parameters............................................................................ 33-26
33.4.3 IMA Root Table....................................................................................................... 33-27
33.4.3.1 IMA Control (IMACNTL) .................................................................................. 33-29
33.4.4 IMA Group Tables................................................................................................... 33-29
33.4.4.1 IMA Group Transmit Table Entry ....................................................................... 33-30
33.4.4.1.1 IMA Group Transmit Control (IGTCNTL) .................................................... 33-31
33.4.4.1.2 IMA Group Transmit State (IGTSTATE) ....................................................... 33-31
33.4.4.1.3 Transmit Group Order Table............................................................................ 33-32
33.4.4.1.4 ICP Cell Templates.......................................................................................... 33-33
33.4.4.2 IMA Group Receive Table Entry......................................................................... 33-36
33.4.4.2.1 IMA Group Receive Control (IGRCNTL) ..................................................... 33-38
33.4.4.2.2 IMA Group Receive State (IGRSTATE) ........................................................ 33-39
33.4.4.2.3 IMA Receive Group Frame Size .................................................................... 33-39
33.4.4.2.4 Receive Group Order Tables ........................................................................... 33-40
33.4.5 IMA Link Tables...................................................................................................... 33-41
33.4.5.1 IMA Link Transmit Table Entry.......................................................................... 33-41
33.4.5.1.1 IMA Link Transmit Control (ILTCNTL) ....................................................... 33-42
33.4.5.1.2 IMA Link Transmit State (ILTSTATE) .......................................................... 33-43
33.4.5.1.3 IMA Transmit Interrupt Status (ITINTSTAT) ................................................ 33-43
33.4.5.2 IMA Link Receive Table Entry ........................................................................... 33-44
33.4.5.2.1 IMA Link Receive Control (ILRCNTL) ........................................................ 33-46
33.4.5.2.2 IMA Link Receive State (ILRSTATE) ........................................................... 33-47
33.4.5.3 IMA Link Receive Statistics Table...................................................................... 33-48
33.4.6 Structures in External Memory................................................................................ 33-48
33.4.6.1 Transmit Queues .................................................................................................. 33-48
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