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HD6432351 Datasheet(PDF) 707 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 707 Page - Renesas Technology Corp

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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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