SH7125_08 Datasheet, PDF (599/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 17 Flash Memory
17.2.3 Mode Comparison
The comparison table of programming and erasing related items about boot mode and user
program mode is shown in table 17.2.
Table 17.2 Comparison of Programming Modes
Programming/erasing On-Board Programming
Off-Board
environment
Boot Mode
User Program Mode*^{2 Programming}
Programming/
erasing enable MAT
User MAT
User MAT
User MAT
Programming/
erasing control
Command method
Programming/erasing 
interface
All erasure
Possible (Automatic)
Possible
Possible (Automatic)
Block division erasure Possible*¹
Possible
Impossible
Program data transfer From host via SCI
From optional device Via programmer
via RAM
User branch function Not possible
Possible
Impossible
Reset initiation MAT
Embedded program
storage MAT
User MAT
Embedded program
storage MAT
Transition to user mode Mode setting change and FWE setting change 
reset
Notes: 1. All-erasure is performed. After that, the specified block can be erased.
2. Cannot be used in 32-kbyte on-chip flash memory version.
• The user MAT is all erased in boot mode. Then, the user MAT can be programmed by means
of the command method. However, the contents of the MAT cannot be read until this state.
Rev. 4.00 Jul. 25, 2008 Page 579 of 750
REJ09B0243-0400