HD6432351 datasheet(707/1025 Pages) RENESAS

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HD6432351 데이터시트(PDF) 707 Page - Renesas Technology Corp

부품명	HD6432351

상세설명	16-Bit Single-Chip Microcomputer

PDF	1025 Pages

Scroll/Zoom	100%

제조업체	RENESAS [Renesas Technology Corp]

홈페이지	http://www.renesas.com

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707 / 1025 page

Section 17 RAM

Rev. 3.00 Sep 15, 2006 page 673 of 988

REJ09B0330-0300

17.3

Operation

When the RAME bit is set to 1, accesses to addresses H'FFF400 to H'FFFBFF are directed to the

on-chip RAM. When the RAME bit is cleared to 0, the off-chip address space is accessed.

Since the on-chip RAM is connected to the CPU by an internal 16-bit data bus, it can be written to

and read in byte or word units. Each type of access can be performed in one state.

Even addresses use the upper 8 bits, and odd addresses use the lower 8 bits. Word data must start

at an even address.

17.4

Usage Note

DTC register information can be located in addresses H'FFF800 to H'FFFBFF. When the DTC is

used, the RAME bit must not be cleared to 0.

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