Renesas H8S/2437 Hardware Manual page 631

Renesas 16-bit single-chip microcomputer h8s family / h8s / 2600 series
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(i) Erased Block Information Inquiry
The boot program will return the number of erased blocks and their addresses.
Command
H'26
• Command, H'26, (one byte): Inquiry regarding erased block information
Response
H'36
Block-start address
···
SUM
• Response, H'36, (one byte): Response to the erased block information inquiry
• Size (two bytes): The number of bytes that represents the number of blocks, block-start
addresses, and block-last addresses
• Number of blocks (one byte): The number of erased blocks
• Block start address (four bytes): Start address of a block
• Block last Address (four bytes): Last address of a block
There are as many groups of data representing the start and last addresses as there are
blocks.
• SUM (one byte): Checksum
(j) Programming Unit Inquiry
The boot program will return the programming unit used to program data.
Command
H'27
• Command, H'27, (one byte): Inquiry regarding programming unit
Response
H'37
• Response, H'37, (one byte): Response to programming unit inquiry
• Size (one byte): The number of bytes that indicates the programming unit, which is fixed to
2
• Programming unit (two bytes): A unit for programming
This is the unit for reception of program data.
• SUM (one byte): Checksum
(k) New Bit-Rate Selection
The boot program will set a new bit rate and return the new bit rate.
This command should be transmitted after the clock mode selection command.
Size
Number of blocks
Size
Programming unit
Block-last address
SUM
Rev. 1.00, 09/03, page 593 of 704

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