IBM25PPC440GX Overview
Description
Designed specifically to address high-end embedded applications, the PowerPC 440GX (PPC440GX) provides a high-performance, low power solution that interfaces to a wide range of peripherals by incorporating on-chip power management features and lower power dissipation. This chip contains a high-performance RISC processor core, DDR SDRAM controller, configurable 256KB SRAM to be used as L2 cache or software-controlled on-chip memory, PCI-X bus int.
Key Features
- PowerPC® 440 processor core operating up to 800MHz with 32KB I- and D-caches (with parity checking)
- On-chip 256KB SRAM configurable as L2 Code store or Ethernet Packet store memory
- Selectable processor:bus clock ratios (Refer to the Clocking chapter in the PPC440GX Embedded Processor User’s Manual for details)
- Double Data Rate (DDR) Synchronous DRAM (SDRAM) interface operating up to 166MHz
- External Peripheral Bus (32 bits) for up to eight devices with external mastering
- DMA support for external peripherals, internal UART and memory
- PCI-X V1.0a interface (32 or 64 bits, up to 133MHz) with support for conventional PCI V2.3
- Two Ethernet 10/100/1000Mbps half- or fullduplex interfaces. Operational modes supported are SMII, GMII, RGMII, TBI and RTBI
- Two Ethernet 10/100Mbps half- or full-duplex interfaces. Operational modes supported are MII, RMII, and SMII
- Programmable Interrupt Controller supports interrupts from a variety of sources
