38K2 Datasheet, PDF (117/151 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

38K2 Group
qErase All Blocks Command
This command erases the contents of all blocks. Execute the
erase all blocks command as explained here following.
(1) Transfer the “A716” command code with the 1st byte.
(2) Transfer the verify command code “D016” with the 2nd byte.
With the verify command code, the erase operation will start
and continue for all blocks in the flash memory.
When erase all blocks end, the SRDY (BUSY) signal changes from
“H” to “L” level. The result of the erase operation can be known by
reading the status register.
SCLK
RxD
TxD
SRDY (BUSY)
Fig. 159 Timing for erase all blocks
A716 D016
Rev.3.00 Oct 15, 2006 page 117 of 147
REJ03B0193-0300