68HC705SP7 datasheet(44/230 Pages) FREESCALE

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68HC705SP7 数据表(PDF) 44 Page - Freescale Semiconductor, Inc

部件名	68HC705SP7

功能描述	General Release Specification

PDF	230 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

标志

44 / 230 page

Central Processor Unit (CPU)

General Release Specification

MC68HC705JJ7/MC68HC705JP7 — Rev. 3.0

Central Processor Unit (CPU)

3.8 Arithmetic/Logic Unit (ALU)

The ALU performs the arithmetic and logical operations defined by the

instruction set. The binary arithmetic circuits decode instructions and set

up the ALU for the selected operation. Most binary arithmetic is based

on the addition algorithm, carrying out subtraction as negative addition.

Multiplication is not performed as a discrete operation but as a chain of

addition and shift operations within the ALU. The multiply instruction

(MUL) requires 11 internal clock cycles to complete this chain of

operations.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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