MPC8280CVRMX datasheet(4/83 Pages) NXP

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MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2

Freescale Semiconductor

Overview

— Common on-chip processor (COP) test interface

— High-performance (SPEC95 benchmark at 450 MHz; 855 Dhrystones MIPS at 450 MHz)

— Supports bus snooping

— Support for data cache coherency

— Floating-point unit (FPU)

•

Separate power supply for internal logic and for I/O

•

Separate PLLs for G2_LE core and for the communications processor module (CPM)

— G2_LE core and CPM can run at different frequencies for power/performance optimization

— Internal core/bus clock multiplier that provides ratios 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1, 5:1, 6:1,

7:1, 8:1

— Internal CPM/bus clock multiplier that provides ratios 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 5:1, 6:1, 8:1

ratios

•

64-bit data and 32-bit address 60x bus

— Bus supports multiple master designs

— Supports single- and four-beat burst transfers

— 64-, 32-, 16-, and 8-bit port sizes controlled by on-chip memory controller

— Supports data parity or ECC and address parity

•

32-bit data and 18-bit address local bus

— Single-master bus, supports external slaves

— Eight-beat burst transfers

— 32-, 16-, and 8-bit port sizes controlled by on-chip memory controller

•

60x-to-PCI bridge

— Programmable host bridge and agent

— 32-bit data bus, 66.67/83.3/100 MHz, 3.3 V

— Synchronous and asynchronous 60x and PCI clock modes

— All internal address space available to external PCI host

— DMA for memory block transfers

— PCI-to-60x address remapping

•

PCI bridge

— PCI Specification Revision 2.2 compliant and supports frequencies up to 66 MHz

— On-chip arbitration

— Support for PCI-to-60x-memory and 60x-memory-to-PCI streaming

— PCI host bridge or periphera

l capabilities

— Includes 4 DMA channels for the following transfers:

– PCI-to-60x to 60x-to-PCI

– 60x-to-PCI to PCI-to-60x

– 60x-to-PCI to 60x-to-PCI

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