M16C Datasheet, PDF (250/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C / 6N Group
Standard Serial I/O Mode
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Block Erase Command
This command erases the data in the specified block. Execute the block erase command as explained
below.
(1) Send the "2016" command code in the first byte of the transmission.
(2) Send addresses A8 to A15 and A16 to A23 in the second and the third bytes of the transmission
respectively.
(3) Send the verify command code "D016" in the fourth byte of the transmission. 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 A16 to A23.
When the block ease ends, the RTS1 (BUSY) signal changes from the "H" to the "L" level. After the 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.
CLK1
TxD1
RxD1
2016
A8 to A16 to
A15
A23
D016
RTS1(BUSY)
Figure 25-6. Timing for block erase
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