D12320VF25V Datasheet, PDF (804/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 17 ROM
Table 17.62 Programming/Erasing Command
Command
H'42
H'43
H'50
H'48
H'58
H'52
H'4A
H'4B
H'4C
H'4D
H'4F
Command Name
Description
User boot MAT programming selection Transfers the user boot MAT programming
program
User MAT programming selection
Transfers the user MAT programming
program
128-byte programming
Programs 128 bytes of data
Erasing selection
Transfers the erasing program
Block erasing
Erases a block of data
Memory read
Reads the contents of memory
User boot MAT sum check
Checks the checksum of the user boot MAT
User MAT sum check
Checks the checksum of the user MAT
User boot MAT blank check
Checks whether the contents of the user boot
MAT are blank
User MAT blank check
Checks whether the contents of the user MAT
are blank
Boot program status inquiry
Inquires into the boot program's status
(1) Programming
Programming is executed by a programming-selection command and an 128-byte programming
command.
Firstly, the host should send the programming-selection command and select the programming
method and programming MATs. There are two programming selection commands, and selection
is according to the area and method for programming.
• User boot MAT programming selection
• User MAT 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 an 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.
Rev.7.00 Feb. 14, 2007 page 770 of 1108
REJ09B0089-0700