SH7055S Datasheet, PDF (859/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Table 22.19 Programming/Erasing Commands
Command Command Name
H'42
User boot MAT programming selection
H'43
User MAT programming selection
H'44
H'50
H'48
H'58
H'52
H'4A
Two-user-MAT simultaneous
programming selection
128-byte programming
Erasing selection
Block erasing
Memory read
User boot MAT sum check
H'4B
H'4C
User MAT sum check
User boot MAT blank check
H'4D
User MAT blank check
H'4F
Boot program status inquiry
Description
Transfers the user boot MAT
programming program
Transfers the user MAT programming
program
Transfers the two-user-MAT
simultaneous programming program
Programs 128 bytes of data
Transfers the erasing program
Erases a block of data
Reads the contents of memory
Checks the checksum of the user boot
MAT
Checks the checksum of the user MAT
Checks whether the contents of the user
boot MAT are blank
Checks whether the contents of the user
MAT are blank
Inquires into the boot program's state
Programming: Programming is executed by a programming selection command and a 128-byte
programming command.
First, the host should send the programming selection command and select the programming
method and programming MATs. There are three programming selection commands used
according to the area and method for programming.
(1) User boot MAT programming selection
(2) User MAT programming selection
(3) Two-user-MAT simultaneous programming selection
After issuing the programming selection command, the host should send the 128-byte
programming command. The 128-byte programming command that follows the selection
command represents the data programmed according to the method specified by the selection
command. When more than 128-byte data is programmed, 128-byte commands should repeatedly
be executed. Sending a 128-byte programming command with H'FFFFFFFF as the address will
stop the programming. On completion of programming, the boot program will wait for selection
of programming or erasing.
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