M16C6K9 Datasheet, PDF (281/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
Standard Serial I/O Mode
Block erase command
The command erases the data in the specified block. Execute the command as follows:
(1) Transfer the command code “2016” in the 1^st byte.
(2) Transfer addresses A15–A8 and A23–A16 in the 2^nd and 3^rd bytes respectively.
(3) After transferring the verify command code“D016” in the 4^th byte, the erase operation starts for the specified
block of the flash memory. Issue the biggest address of th2e specified block to A23–A8.
After the completion of block erase, the RTS10 (BUSY) signal changes from “H” to “L”. The result of the block
erase can be know by reading the status register. For more detail, see the section on the status register.
CLK10
RxD10
(M16C reception data)
TxD10
(M16C transmit data)
RTS10(BUSY)
2016
A8 to A16 to
A15
A23
D016
Fig.EE-6 Timing of block erase
Rev.1.00 Jun 06, 2003 page 281 of 290