M16CSLASH26 datasheet(205/239 Pages) RENESAS

tên linh kiện	M16C/26

Giải thích chi tiết về linh kiện	16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

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CPU Rewrite Mode (Flash Memory Version)

199

Renesas Technology Corp.

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Figure 1.20.5. Block erase flowchart with erase suspend function

Write 'XX2016' (Note 1)

FMR40=1

Write 'XXD016' to the

uppermost address

(Note 1)

FMR00=1?

Start

Full Status Check

(Note 2, 4)

Block erase

completed

YES

(EW0 mode)

FMR41=1

Access to Flash Memory

Interrupt (Note 3)

FMR46=1?

YES

FMR41=0

REIT

Write 'XX2016' (Note 1)

FMR40=1

Write 'XXD016' to the

uppermost address

(Note 1)

FMR00=1?

Start

Full Status Check

(Note 2, 4)

Block erase

completed

YES

(EW1 mode)

FMR41=0

Access to Flash Memory

Interrupt

REIT

Note 1: Write value to highest even address within the block.

Note 2: If the error occurs, try to execute Clear Status Register command then

Block Erase command at least three times until erase error disappears.

Note 3: Please set interrupt vector table on RAM region with EW0 mode.

Note 4: Please refer to Figure 1.20.6, "Full status check flowchart and remedial

procedure for errors".

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