Datasheet

Section 20 Flash Memory (0.18-μm F-ZTAT Version)
Rev.6.00 Mar. 18, 2009 Page 751 of 980
REJ09B0050-0600
⎯ When the erasure preparation notice is received, the state for waiting erase-block data is
entered. The erase-block number must be transmitted following the erasing command.
When the erasure is finished, the erase-block number must be set to H'FF and transmitted.
Then the state for waiting erase-block data is returned to the state for waiting
programming/erasing command. The erasure must be used when the specified block is
programmed without a reset start after programming is executed in boot mode. When
programming can be executed by only one operation, all blocks are erased before the state
for waiting programming/erasing/other command is entered. The erasing operation is not
required.
⎯ There are many commands other than programming/erasing. Examples are sum check,
blank check (erasure check), and memory read of the user MAT/user boot MAT and
acquisition of current status information.
Note that memory read of the user MAT/user boot MAT can only read the programmed data after
all user MAT/user boot MAT has automatically been erased.