HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 933

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

21.1.2
The comparison table of programming and erasing related items about boot mode, user program
mode, user boot mode, and PROM mode is shown in table 21.1.
Table 21.1 Comparison of Programming Modes
Programming/
erasing
environment
Programming/
erasing enable
MAT
All erasure
Block division
erasure
Program data
transfer
Reset initiation
MAT
Transition to user
mode
Notes: 1. All-erasure is performed. After that, the specified block can be erased.
• The user boot MAT can be programmed or erased only in boot mode and PROM mode.
• The user MAT and user boot MAT are erased in boot mode. Then, the user MAT and user boot
• The boot operation of the optional interface can be performed by the mode pin setting different
MAT can be programmed by means of the command method. However, the contents of the
MAT cannot be read until this state.
Only user boot MAT is programmed and the user MAT is programmed in user boot mode or
only user MAT is programmed because user boot mode is not used.
from user program mode in user boot mode.
2. Firstly, the reset vector is fetched from the embedded program storage MAT. After the
Mode Comparison
flash memory related registers are checked, the reset vector is fetched from the user
boot MAT.
Boot mode
On-board
programming
User MAT
User boot MAT
From host via SCI From optional
Embedded program
storage MAT
Changing mode
setting and reset
*
(Automatic)
1
User program
mode
On-board
programming
User MAT
device via RAM
User MAT
Changing FLSHE
bit
Section 21 Flash Memory (0.18-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 865 of 1136
User boot mode
On-board
programming
User MAT
From optional
device via RAM
User boot MAT *
Changing mode
setting and reset
2
REJ09B0109-0700
PROM mode
Off-board
programming
User MAT
User boot MAT
×
Via programmer
⎯
⎯
(Automatic)