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MPC8280 Datasheet(PDF) 1186 Page - Freescale Semiconductor, Inc |
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MPC8280 Datasheet(HTML) 1186 Page - Freescale Semiconductor, Inc |
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1186 / 1386 page  Inverse Multiplexing for ATM (IMA) MPC8280 PowerQUICC II Family Reference Manual, Rev. 1 34-40 Freescale Semiconductor 34.4.5.2 IMA Link Receive Table Entry Table 34-19. IMA Link Receive Table Entry1 Offset Name Width Description 0x00 ILRCNTL Hword IMA link receive control parameters. 0x02 ILRSTATE Hword IMA link receive state. Microcode-managed parameter. Initialize to 0x0040 at link startup. 0x04 ILID Byte IMA link ID. Formatted per the Cell ID and Link ID field of an ICP cell. Bit 0: 1 (indicating ICP cell) Bits 1-2: Program to zero Bits 3-7: Program to validated LID for this link [Note: This value is only used by microcode to validate incoming ICP cells for this link, it is not used to determine round-robin transmission order. That function is performed by the group order table.] 0x05 RMCTR Byte Receive M counter. Microcode-managed parameter. 0x06 LRIFSN Byte Receive IFSN counter. Microcode-managed parameter. 0x07 DFC Byte Number of frames to discard on a this link until it is caught up with the other links in this group (long propagation delay). Microcode-managed parameter. 0x08 DCBSP Hword IMA link delay compensation buffer start pointer. This parameter forms bits 12-27 of the pointer; bits 0-11 are from IMAEXTBASE, and bits 28-31 are zero. Refer to Section 34.4.6.2, “Delay Compensation Buffers (DCB) for more details. 0x0A DCBEP Hword IMA link delay compensation buffer end pointer. This parameter forms bits 12-27 of the pointer; bits 0-11 are from IMAEXTBASE, and bits 28-31 are zero. Refer to Section 34.4.6.2, “Delay Compensation Buffers (DCB),” for more details. 0x0C DCBFP Hword IMA link delay compensation buffer fill pointer. Microcode-managed parameter. This parameter forms bits 12-27 of the pointer; bits 0-11 are from IMAEXTBASE, and bits 28-31 are zero. Initialize to DCBSP at link startup. 0x0E DCBRP Hword IMA link delay compensation buffer read pointer. Only used during group delay synchronization and link addition. Microcode-managed parameter. This parameter forms bits 12-27 of the pointer; bits 0-11 are from IMAEXTBASE, and bits 28-31 are zero. 0x10 RICPCH Hword Receive ICP channel number. ATM receive channel number to which received ICP cells are sent. 0x12 IRINTMSK Byte IMA receive interrupt mask. Has the same format as the IMA interrupt queue entry.; however, only receive-related bits are relevant. Setting a bit enables the associated interrupt; clearing a bit masks it. For group-related events, only the mask register for the TRL is referenced. 0x13 LICPOS Byte Link ICP offset. Program to the ICP offset validated for this link. 0x14 IRSEC Word IMA receive stuff event counter. Increments each time a stuff event is received on this ink. Initialize to zero at link startup. |
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