Integrated Host Processor with Integrated PCI

MPC8240

The MPC8240 Integrated Host Processor fits applications where cost, space, power consumption and performance are critical requirements. This device provides a high level of integration, reducing chip count from five discrete chips to one, thereby significantly reducing system component cost. High integration results in a simplified board design, less power consumption and faster time-to-market solution. This cost-effective, general-purpose integrated processor targets systems using PCI interfaces in networking infrastructure, telecommunications, and other embedded markets. It can be used for control processing in applications such as routers, switches, network storage applications and image display systems.

Processor Core 

The MPC8240 Integrated Host Processor takes advantage of a small, yet powerful 32-bit, superscalar MPC603e processor core. The processor core provides floating-point support, memory management, 16-Kbyte instruction and data caches and power management features with five independent execution units. This full-featured high-performance processor core is software-compatible with microprocessors based on Power Architecture.

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Features

  • 32-bit PCI interface operating at up to 66 MHz
  • Memory controller offering SDRAM support up to 100 MHz operation
  • General Purpose I/O and ROM Interface Support
  • Two-channel DMA controller that supports chaining
  • Messaging unit with I2O messaging support capability
  • Industry-standard I2C interface
  • Programmable interrupt controller with multiple timers and counters
  • Routers/Switches
  • Multi-channel modems
  • Network storage
  • Image display systems
  • Enterprise I/O processor
  • Internet access device (IAD)
  • Disk controller for RAID systems
  • Copier/printer board control
  • MPC603e processor core
    • High-performance, superscalar processor core
    • Floating-point unit (selectable), integer, load/store, system register and branch processing unit
    • 16K instruction cache, 16K data cache
    • Lockable portion of L1 cache
    • Dynamic power management
  • Memory interface
    • 100 MHz memory bus capability
    • Programmable timing supporting either FPM DRAM, EDO DRAM or SDRAM
    • High-bandwidth bus (32/64-bit data bus) to DRAM
    • Supports one to eight banks of 4-, 16-, 64- or 128-Mbit DRAM
    • Supports 1 Mbyte to 1 Gbyte DRAM memory
    • Contiguous memory mapping
    • 16 Mbytes of ROM space
    • 8-bit, 32-bit, or 64-bit ROM
    • Supports bus-width writes to flash
    • Read-modify-write parity support (selectable)
    • ECC support (selectable)
    • SDRAM, DRAM buffer data-path
    • Error injection/capture on data path
    • LVTTL compatible
    • PortX: 8-, 32- or 64-bit general-purpose I/O port uses ROM controller interface with address strobe
  • 32-bit PCI interface operating up to 66 MHz
    • PCI 2.1 compatible
    • PCI 5.0 V tolerant
    • Support for PCI locked accesses to memory
    • Support for accesses to all PCI address spaces
    • Selectable big- or little-endian operation
    • Store gathering of processor-to-PCI writes and PCI-to-memory writes
    • Memory prefetching of PCI read accesses
    • Parity support (selectable)
    • Selectable hardware-enforced coherency
    • PCI bus arbitration unit (5 request/grant pairs)
  • PCI agent mode capability
    • Address Translation Unit (ATU)
    • Run time register access
    • PCI configuration register access
  • Two-channel integrated DMA controller
    • Supports direct or chaining modes
    • Scatter gather
    • Interrupt on completed segment, chain, and error
    • Local to local memory
    • PCI to PCI memory
    • PCI to local memory
    • Local to PCI memory
  • Message Unit
    • (I2O) Intelligent Input/Output Message Controller
    • Two door-bell registers
    • Inbound and outbound messaging registers
  • (I2C) Inter-Integrated Circuit Controller
    • Full controller/target support
  • Embedded programmable interrupt controller (EPIC)
    • Five hardware interrupts (IRQs) or 16 serial interupts
    • Four programmable timers
  • Integrated PCI bus and SDRAM clock generation
  • Programmable memory and PCI bus drivers
  • Debug Features
    • Watchpoint monitor
    • Memory attribute and PCI attribute signals
    • JTAG/COP Common On-board Processor for in-circuit hardware debugging

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