m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 425
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m30833fjgp
Manufacturer Part Number
m30833fjgp
Description
Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M30833FJGP.pdf
(527 pages)
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Figure 25.7 Block Erase Command
2
0
1
9
C
3 .
B
8 /
0
1
25.3.5.5 Block Erase Command
3
0
The block erase command erases each block.
By writing command code "xx20
of a block in the second bus cycle, an auto erase operation (erase and verify) starts in the specified
block. Do not access the flash memory or execute the next command during auto erase operations.
The FMR00 bit in the FMR0 register indicates whether an auto erase operation has been completed.
After the completion of an auto erase operation, the Status register indicates whether or not the auto
erase operation has been completed as expected. (Refer to 25.3.6 Full Status Check.)
Figure 25.7 shows a flow chart of the block erase command programming.
The lock bit can protect blocks from being erased. (Refer to 25.3.6 Data Protect Function.)
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Page 402
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highest-order block address
) T
8
Write "xxD0
Write command code
16
(auto erase operation
Full status check
" in the first bus cycle and "xxD0
FMR00 bit = 1?
completed?)
Block erase
operation is
completed
"xx20
Start
YES
16
16
" to the
"
NO
16
" to the highest-order even address
See Figure 25.11
25. Flash Memory Version
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