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MC8640DVU1250N Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc |
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MC8640DVU1250N Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc |
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3 / 140 page  MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 1 Freescale Semiconductor 3 Overview 1.1 Key Features The following lists an overview of the MPC8640 key feature set: • Major features of the e600 core are as follows: — High-performance, 32-bit superscalar microprocessor that implements the PowerPC ISA — Eleven independent execution units and three register files – Branch processing unit (BPU) – Four integer units (IUs) that share 32 GPRs for integer operands – 64-bit floating-point unit (FPU) – Four vector units and a 32-entry vector register file (VRs) – Three-stage load/store unit (LSU) — Three issue queues, FIQ, VIQ, and GIQ, can accept as many as one, two, and three instructions, respectively, in a cycle. — Rename buffers — Dispatch unit — Completion unit — Two separate 32-Kbyte instruction and data level 1 (L1) caches — Integrated 1-Mbyte, eight-way set-associative unified instruction and data level 2 (L2) cache with ECC — 36-bit real addressing — Separate memory management units (MMUs) for instructions and data — Multiprocessing support features — Power and thermal management — Performance monitor — In-system testability and debugging features — Reliability and serviceability • MPX coherency module (MCM) — Ten local address windows plus two default windows — Optional low memory offset mode for core 1 to allow for address disambiguation • Address translation and mapping units (ATMUs) — Eight local access windows define mapping within local 36-bit address space — Inbound and outbound ATMUs map to larger external address spaces — Three inbound windows plus a configuration window on PCI Express — Four inbound windows plus a default window on serial RapidIO — Four outbound windows plus default translation for PCI Express — Eight outbound windows plus default translation for serial RapidIO with segmentation and sub-segmentation support |
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