Section 17 Flash Memory (0.18-(m F-ZTAT Version)
Rev. 3.00 Mar. 14, 2006 Page 572 of 804
REJ09B0104-0300
Table 17.1 Differences between Boot Mode, User Program Mode, User Boot Mode, and
Programmer Mode
Item
Boot Mode
User Program
Mode
User Boot Mode
Programmer
Mode
Programming/
erasing
environment
On-board
programming
On-board
programming
On-board
programming
Off-board
programming
Programming/
erasing enable
MAT
•
User MAT
•
User boot MAT
•
User MAT
•
User MAT
•
User MAT
•
User boot MAT
Programming/
erasing control
Command Programming/
erasing interface
Programming/
erasing interface
Command
All erasure
O (Automatic)
O
O
O (Automatic)
Block division
erasure
O
*
1
O O
×
Program data
transfer
From host via SCI From desired
device via RAM
From desired
device via RAM
Via programmer
RAM emulation
×
O O
×
Reset initiation
MAT
Embedded
program storage
area
User MAT
User boot MAT
*
2
Transition to
user mode
Changing mode
and reset
Completing
Programming/
erasure
*
3
Changing mode
and reset
Notes: 1. All-erasure is performed. After that, the specified block can be erased.
2. First, the reset vector is fetched from the embedded program storage area. After the
flash memory related registers are checked, the reset vector is fetched from the user
boot MAT.
3. In this LSI, the user programming mode is defined as the period from the timing when a
program concerning programming and erasure is started to the timing when the
program is completed. For details on a program concerning programming and erasure,
see section 17.8.2, User Program Mode.
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