MPC8540 datasheet(103/1302 Pages) FREESCALE

103 / 1302 page

MPC8540 Architecture Overview

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

Freescale Semiconductor

1-9

NOTE

The SPE APU and SPFP APU functionality will be implemented in

the MPC8540, the MPC8560 and in their derivatives (that is, in all

PowerQUICC III devices). However, these instructions will not be

supported in devices subsequent to PowerQUICC III. Freescale

Semiconductor strongly recommends that use of these instructions be

confined to libraries and device drivers. Customer software that uses

SPE or SPFP APU instructions at the assembly level or that uses SPE

intrinsics will require rewriting for upward compatibility with

next-generation PowerQUICC devices.

Freescale Semiconductor offers a libmoto_e500 library that uses SPE

and SPFP APU instructions. Freescale will also provide future

libraries to support next generation PowerQUICC devices.

•

L1 cache structure

— 32-Kbyte, 32-byte line, eight-way set-associative instruction cache

— 32-Kbyte, 32-byte line, eight-way set-associative data cache

— 1.5-cycle cache array access, 3-cycle load-to-use latency

— Pseudo-LRU replacement algorithm

— Copy-back data cache

•

Dual-dispatch superscalar

•

Precise exception handling

•

Seven-stage pipeline control

•

Instruction unit

— Twelve-entry instruction queue

— Full hardware detection of interlocks

— Dispatch up to two instructions per cycle

— Dispatch serialization control

— Register dependency resolution and renaming

•

Branch unit (BU)

— Dynamic branch prediction

— Two-entry branch instruction queue (BIQ)

— Executes all branch and CR logical instruction

•

Completion unit

— As many as 14 instructions allowed in 14-entry completion queue

— In-order retirement of up to two instructions per cycle

MPC8540 датащи(PDF) 103 Page - Freescale Semiconductor, Inc

MPC8540 датащи(HTML) 103 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL