M16CSLASH29 datasheet(374/499 Pages) RENESAS

tên linh kiện	M16C/29

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20. Flash Memory Version

page 350

Figure 20.13 Block Erase Command (at use erase suspend)

NOTES:

1. Write the command code and data to even address.

2. Execute the clear status register command and block erase command at least 3 times until an

erase error is not generated when an erase error is generated.

3. In EW mode 0, allocate an interrupt vector table of an interrupt, to be used, to the RAM area

4. Refer to Figure 20.14.

Start

Block erase completed

Write the command code

xx2016 (1)

Write xxD016 to the highest-order

block address (1)

YES

FMR00=1?

Full status check (2,4)

FMR40=1

Interrupt service routine(3)

FMR41=1

YES

FMR46=1?

Access Flash Memory

Return

(Interrupt service routine end)

FMR41=0

(EW mode 0)

(EW mode 1)

Start

Block erase completed

Write the command code

xx2016 (1)

Write xxD016 to the highest-order

block address (1)

YES

FMR00=1?

Full status check (2,4)

FMR40=1

FMR41=0

Interrupt service routine

Access Flash Memory

Return

(Interrupt service routine end)

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