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| SH7280 Datasheet, PDF (1416/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family | |||
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Section 26 Flash Memory
26.2.3 Mode Comparison
The comparison table of programming and erasing related items about boot mode, user program
mode, user boot mode, and programmer mode is shown in table 26.2.
Table 26.2 Comparison of Programming Modes
Boot Mode
User
Program
Mode
User Boot
Mode*3
USB Boot
Mode*3
Programmer
Mode
Programming/
erasing
environment
On-board
On-board
On-board
On-board
Off-board
programming programming programming programming programming
Programming/
erasing enable
MAT
User MAT
User MAT
User boot MAT
User MAT
User MAT
User MAT
User boot
MAT
Programming/ Command
Programming/ Programming/ Command
â
erasing control method
erasing
erasing
method
interface
interface
All erasure
Possible
(Automatic)
Possible
Possible
Possible
(Automatic)
Possible
(Automatic)
Block division
erasure
Possible*1
Possible
Possible
Possible*1
Not possible
Program data
transfer
From host via From optional From optional From host via Via
SCI
device via
device via
USB
programmer
RAM
RAM
User branch
function
Not possible Possible
Possible
Not possible Not possible
Reset initiation
MAT
Embedded
program
storage MAT
User MAT
User boot
MAT*2
Embedded
program
storage MAT
Embedded
program
storage MAT
Transition to user Mode setting FWE setting Mode setting Mode setting â
mode
change and change
change and change and
reset
reset
reset
Notes: 1. All-erasure is performed. After that, the specified block can be erased.
2. Initiation starts from the embedded program storage MAT. After checking the flash-
memory related registers, initiation starts from the reset vector of the user MAT.
3. Not available in the SH7243.
Rev. 1.00 Jun. 26, 2008 Page 1386 of 1692
REJ09B0393-0100
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