Table 17.1 Differences Between Boot Mode, User Program Mode, User Boot Mode - Renesas H8SX/1520 Series Hardware Manual

Section 17 Flash Memory (0.18-(m F-ZTAT Version)
Table 17.1 Differences between Boot Mode, User Program Mode, User Boot Mode, and
Programmer Mode
Item
Programming/
erasing
environment
Programming/
erasing enable
MAT
Programming/
erasing control
All erasure
Block division
erasure
Program data
transfer
RAM emulation ×
Reset initiation
MAT
Transition to
user mode
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.
Rev. 3.00 Mar. 14, 2006 Page 572 of 804
REJ09B0104-0300
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User Program
Boot Mode Mode
On-board On-board
programming programming
• •
User MAT
•
User boot MAT
Command Programming/
erasing interface
O (Automatic) O
1
O* O
From host via SCI From desired
device via RAM
O
Embedded User MAT
program storage
area
Changing mode Completing
and reset Programming/
erasure*
User Boot Mode
On-board
programming
•
User MAT User MAT
Programming/
erasing interface
O
O
From desired
device via RAM
O
User boot MAT*
Changing mode
and reset
3
Programmer
Mode
Off-board
programming
•
User MAT
•
User boot MAT
Command
O (Automatic)
×
Via programmer
×

2
