M16CSLASH62M datasheet(263/615 Pages) RENESAS

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Appendix Standard Serial I/O Mode 1 (Flash Memory Version)

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

1-244

Block Erase Command

This command erases the data in the specified block. Execute the block erase command as explained

here following.

(1) Transfer the “2016” command code with the 1st byte.

(2) Transfer addresses A8 to A15 and A16 to A23 with the 2nd and 3rd bytes respectively.

(3) Transfer the verify command code “D016” with the 4th byte. With the verify command code, the

erase operation will start for the specified block in the flash memory. Write the highest address of

the specified block for addresses A8 to A23.

When block erasing ends, the RTS1 (BUSY) signal changes from the “H” to the “L” level. After block

erase ends, the result of the block erase operation can be known by reading the status register. For

more information, see the section on the status register.

Each block can be erase-protected with the lock bit. For more information, see the section on the data

protection function.

Figure 1.29.7. Timing for block erasing

A8 to

A15

A16 to

A23

2016

D016

CLK1

RxD1

TxD1

RTS1(BUSY)

(M16C reception data)

(M16C transmit data)

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