r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1083
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r4f2426
Manufacturer Part Number
r4f2426
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2426.pdf
(1302 pages)
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After automatic writing is completed, the result can be checked through the FMPRSF bit in
FMRSTR (refer to section 21.7, Full Status Check).
Once an address is programmed, no additional data can be written to the address. Figure 21.4
shows a flowchart of the program command processing.
In the EW0 mode, the read status register mode is entered as soon as automatic writing starts, and
the status register can be read. The SR7 bit in the status register becomes 0 when automatic
writing starts and returns to 1 when writing is completed. In this case, the flash memory stays in
the read status register mode until a read array command is issued. After automatic writing is
completed, the result of writing can be checked by reading the status register.
Figure 21.4 Flowchart of Program Command Processing
Note: Write the command code and data to even addresses.
Write command code "H'xx41"
to the target write address.
the target write address.
End of programming
Full status check
Write data to
FMRDY = 1?
Start
YES
Rev. 1.00 Sep. 19, 2008 Page 1055 of 1270
NO
Section 21 Flash Memory
REJ09B0466-0100
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