SH7211 Datasheet, PDF (998/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 21 Flash Memory
• Response H'06 (1 byte): Response to the block erasure command
This ACK code is returned when the block has been erased.
Error
response
H'D8
ERROR
• Error response H'D8 (1 byte): Error response to the block erasure command
• ERROR (1 byte): Error code
H'11: Sum-check error
H'29: Block number error (the specified block number is incorrect.)
H'51: Erasure error (an error occurred during erasure.)
On receiving the command with H'FF as the block number, the boot program stops erasure
processing and waits for the next programming/erasure selection command.
Command H'58
Size
Block number
SUM
• Command H'58 (1 byte): Erasure of a block
• Size (1 byte): The number of characters in the block number field (fixed at 1)
• Block number (1 byte): H'FF (erasure terminating code)
• SUM (1 byte): Checksum
Response
H'06
• Response H'06 (1 byte): ACK code to indicate response to the request for termination of
erasure
To perform erasure again after having issued the command with the block number specified as
H'FF, execute the process from the selection of erasure.
(10) Memory Read
In response to the memory read command, the boot program returns the data from the specified
address.
Command
H'52
Size
Amount to read
Area
First address for reading
SUM
Rev. 2.00 May. 08, 2008 Page 974 of 1200
REJ09B0344-0200