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R8C Scheda tecnica(PDF) 150 Page - Renesas Technology Corp

Il numero della parte R8C
Spiegazioni elettronici  RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  199 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R8C Scheda tecnica(HTML) 150 Page - Renesas Technology Corp

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R8C/10 Group
17. Memory Map
Rev.1.20 Jan 27, 2006
page 140 of 180
REJ09B0019-0120
Table 17.1 Flash Memory Version Performance
17. Flash Memory Version
17.1 Overview
The flash memory version has two modes—CPU rewrite and standard serial I/O—in which its flash
memory can be operated on.
Table 17.1 outlines the performance of flash memory version (see “Table 1.1 Performance” for the items
not listed on Table 17.1).
Item
Flash memory operating mode
Erase block
Method for program
Method for erasure
Program, erase control method
Protect method
Number of commands
Number of program and erasure
ROM code protection
Specification
2 modes (CPU rewrite and standard serial I/O)
See “Figure 17.1. Flash Memory Block Diagram”
In units of byte
Block erase
Program and erase controlled by software command
Blocks 0 and 1 protected by block 0, 1 program enable bit
5 commands
100 times
Standard serial I/O mode is supported.
Table 17.2 Flash Memory Rewrite Modes
Flash memory
CPU rewrite mode
Standard serial I/O mode
rewrite mode
Function
Areas which
User ROM area
User ROM area
can be rewritten
Operation
Single chip mode
Boot mode
mode
ROM
None
Serial programmer
programmer
User ROM area is rewritten by executing
software commands from the CPU.
EW0 mode: Can be rewritten in any area
other than the flash memory
EW1 mode: Can be rewritten in the flash
memory
User ROM area is rewritten by using a
dedicated serial programmer.
Standard serial I/O mode 1
: Clock synchronous serial I/O
Standard serial I/O mode 2
: UART



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