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MPC7455 Datasheet Risc Microprocessor

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

Overview: Freescale Semiconductor Technical Data MPC7455EC Rev. 4.1, 02/2005 MPC7455 RISC Microprocessor Hardware Specifications The MPC7455 and MPC7445 are implementations of the PowerPC™ microprocessor family of reduced instruction set computer (RISC) microprocessors. This document is primarily concerned with the MPC7455; however, unless otherwise noted, all information here also applies to the MPC7445. This document describes pertinent electrical and physical characteristics of the MPC7455. For functional characteristics of the processor, refer to the MPC7450 RISC Microprocessor Family User’s Manual. To locate any published updates for this document, refer to the website at http://www.freescale.com. Contents 1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.

General Description

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Key Features

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  • Thirty-two 64-bit FPRs for single- or double-precision operands.
  • Four vector units and 32-entry vector register file (VRs).
  • Vector permute unit (VPU).
  • Vector integer unit 1 (VIU1) handles short-latency AltiVec™ integer instructions, such as vector add instructions (vaddsbs, vaddshs, and vaddsws, for example).
  • Vector integer unit 2 (VIU2) handles longer-latency AltiVec integer instructions, such as vector multip.

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