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HD64F2149YV 数据表(PDF) 63 Page - Renesas Technology Corp

部件名 HD64F2149YV
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

HD64F2149YV 数据表(HTML) 63 Page - Renesas Technology Corp

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Section 2 CPU
Rev. 3.00 Jan 18, 2006 page 35 of 1044
REJ09B0280-0300
2.1.3
Differences from H8/300 CPU
In comparison to the H8/300 CPU, the H8S/2000 CPU has the following enhancements.
• More general registers and control registers
 Eight 16-bit extended registers, and one 8-bit control register, have been added.
• Expanded address space
 Normal mode supports the same 64-kbyte address space as the H8/300 CPU.
 Advanced mode supports a maximum 16-Mbyte address space.
• Enhanced addressing
 The addressing modes have been enhanced to make effective use of the 16-Mbyte address
space.
• Enhanced instructions
 Addressing modes of bit-manipulation instructions have been enhanced.
 Signed multiply and divide instructions have been added.
 Two-bit shift instructions have been added.
 Instructions for saving and restoring multiple registers have been added.
 A test and set instruction has been added.
• Higher speed
 Basic instructions execute twice as fast.
2.1.4
Differences from H8/300H CPU
In comparison to the H8/300H CPU, the H8S/2000 CPU has the following enhancements.
• Additional control register
 One 8-bit control register has been added.
• Enhanced instructions
 Addressing modes of bit-manipulation instructions have been enhanced.
 Two-bit shift instructions have been added.
 Instructions for saving and restoring multiple registers have been added.
 A test and set instruction has been added.
• Higher speed
 Basic instructions execute twice as fast.



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