SH7055S Datasheet, PDF (863/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

 ERROR: (one byte): Error code
H'11: Sum check error
H'53: Programming error
An error has occurred in programming, and programming cannot be continued (in two-
user-MAT simultaneous programming, when programming to the last MAT has not been
completed.)
Erasure: Erasure is performed with the erasing selection and block erasing command.
First, erasure is selected by the erasing selection command and the boot program then erases the
block specified by the block erasing command. The command should be repeatedly executed if
two or more blocks are to be erased. Sending a block erasing command from the host with the
block number H'FF will stop erasure. On completion of erasing, the boot program will wait for
selection of programming or erasing.
The erasing selection command and sequence for erasing data are shown in figure 22.31.
Host
Repeat
Preparation for erasure (H'48)
Boot program
Transfer of erasure
program
ACK
Erasure (Erased block number)
ACK
Erasure
Erasure (H'FF)
ACK
Figure 22.31 Erasing Sequence
(1) Erasing selection
The boot program will transfer the erasing program. User MAT data is erased by the
transferred erasing program.
Command H'48
 Command: H'48 (one byte): Erasing selection
Rev.2.0, 07/03, page 825 of 960