r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 912

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 22 Flash Memory
22.2.3
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 22.2.
Table 22.2 Comparison of Programming Modes
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 programmer mode.
• The user MAT and user boot MAT are all erased in boot mode. Then, the user MAT and user
• In user boot mode, the boot operation of the optional interface can be performed by a mode pin
Rev. 1.00 Sep. 21, 2007 Page 886 of 1124
REJ09B0402-0100
Programming/
erasing environment
Programming/
erasing enable MAT
Programming/
erasing control
All erasure
Block division
erasure
Program data
transfer
User branch function Not possible
RAM emulation
Reset initiation MAT Embedded
Transition to user
mode
boot 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.
setting different from user program mode.
2. Initiation starts from the embedded program storage MAT. After checking the flash-
Mode Comparison
memory related registers, initiation starts from the reset vector of the user MAT.
Boot Mode
On-board
programming
User MAT
User boot MAT
Command method Programming/
Possible
(Automatic)
Possible*
From host via SCI From optional
Not possible
program storage
MAT
Mode setting
change and reset
1
User Program
Mode
On-board
programming
User MAT
erasing interface
Possible
Possible
device via RAM
Possible
Possible
User MAT
FWE setting
change
User Boot Mode
On-board
programming
User MAT
Programming/
erasing interface
Possible
Possible
From optional
device via RAM
Possible
Not possible
User boot MAT*
Mode setting
change and reset
2
Possible
Programmer
Mode
Off-board
programming
User MAT
User boot MAT
—
(Automatic)
Not possible
Via programmer
Not possible
Not possible
Embedded
program storage
MAT
—