SH7125_08 Datasheet, PDF (665/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 17 Flash Memory
The sequence of programming by programming-selection and 128-byte programming commands
is shown in figure 17.19.
Host
Programming selection (H'42, H'43)
Repeat
ACK
128-byte programming (address and data)
ACK
Boot program
Transfer the program
that performs
programming
Programming
128-byte programming (H'FFFFFFFF)
ACK
Figure 17.19 Sequence of Programming
(1) Selection of user MAT programming
In response to the command for selecting programming of the user MAT, the boot program
transfers the corresponding flash-writing program, i.e. the program for writing to the user MAT.
Command H'43
 Command H'43 (1 byte): Selects programming of the user MAT.
Response H'06
 Response H'06 (1 byte): Response to selection of user MAT programming
This ACK code is returned after transfer of the program that performs writing to the user
MAT.
Error
response
H'C3
ERROR
 Error response H'C3 (1 byte): Error response to selection of user MAT programming
Rev. 4.00 Jul. 25, 2008 Page 645 of 750
REJ09B0243-0400