Section 17 Flash Memory
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(11) Transition to the programming/erasure state
In response to the transition to the programming/erasure state command, the boot program
transfers the erasing program and runs it to erase any data in the user MAT. On completion of this
erasure, the boot program returns the ACK code and enters the programming/erasure state.
Before sending the programming selection command and data for programming, the host must
select the device, clock mode, and new bit rate for the LSI by issuing the device selection
command, clock-mode selection command, new-bit-rate selection command, and then initiate the
transition to the programming/erasure state by sending the corresponding command to the boot
program.
Command
H'40
Command H'40 (1 byte): Transition to programming/erasure state
Response
H'06
Response H'06 (1 byte): Response to the transition-to-programming/erasure state command
This is returned as ACK when erasure of the user MAT has succeeded after transfer of the
erasure program.
Error
response
H'C0
H'51
Error response H'C0 (1 byte): Error response to the transition-to-programming/erasure state
command
ERROR (1 byte): Error code
H'51: Erasure error (Erasure did not succeed because of an error.)
Summary of Contents for SH7124 R5F7124
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