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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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H8S/2218 Scheda tecnica(PDF) 81 Page - Renesas Technology Corp |
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H8S/2218 Scheda tecnica(HTML) 81 Page - Renesas Technology Corp |
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81 / 750 page  Section 2 CPU Rev.6.00 Jun. 03, 2008 Page 33 of 698 REJ09B0074-0600 2.1.2 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 and two 32-bit control registers, have been added. • Extended 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. 2.1.3 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 registers have 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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