Datasheet

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 894 of 1136
REJ09B0109-0700
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.
Wait for inquiry
setting command
Wait for
programming/erasing
command
Bit rate adjustment
Processing of
read/check command
Boot mode initiation
(reset by boot mode)
H'00.......H'00 reception
H'00 transmission
(adjustment completed)
(Bit rate adjustment)
Processing of
inquiry setting
command
All user MAT and
user boot MAT erasure
Wait for program data
Wait for erase-block
data
Read/check command
reception
Command response
(Program command reception)
(Program data transmission)
(Erasure selection command reception)
(Program end notice)
(Erase-block specification)
(Erasure end selection
command reception)
Inquiry command reception
H'55 reception
Inquiry command response
1
2
3
4
Figure 21.8 Overview of Boot Mode State Transition Diagram