SH7055S Datasheet, PDF (860/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

To continue programming with another method or of another MAT, the procedure must be
repeated from the programming selection command.
The programming selection command and sequence for the 128-byte programming commands are
shown in figure 22.30.
Host
Boot program
Programming selection (H'42, H'43, H'44)
Transfer of the
programming
program
ACK
Repeat
128-byte programming (address, data)
Programming
ACK
128-byte programming (H'FFFFFFFF)
ACK
Figure 22.30 Programming Sequence
(1) User boot MAT programming selection
The boot program will transfer a programming program. The data is programmed to the user
boot MATs by the transferred programming program.
Command H'42
 Command: H'42 (one byte): User boot MAT programming selection
Response H'06
 Response: H'06 (one byte): Response to user boot MAT programming selection
When the programming program has been transferred, the boot program will return ACK.
Error response H'C2 ERROR
 Error response: H'C2 (one byte): Error response to user boot MAT programming selection
 ERROR: (one byte): Error code
H'54: Selection processing error (transfer error occurs and processing is not completed)
(2) User MAT programming selection
The boot program will transfer a programming program. The data is programmed to the user
MATs by the transferred programming program.
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