m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 426

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

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Figure 25.8 Erase All Unlocked Block Command
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25.3.5.6 Erase All Unlocked Block Command
3
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By writing command code "xxA7
erase (erase and verify) operation will run in all blocks. 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 is completed.
After the completion of an auto erase operation, the Status register indicates whether or not the auto
erase operation is completed as expected.
Figure 25.8 shows a flow chart of the erase all unlocked block command programming.
The lock bit can protect each block from being erased. (Refer to 25.3.6 Data Protect Function.)
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Page 403
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Write command code
All unlocked block
(auto erase operation
erase operation is
16
Full status check
FMR00 bit = 1?
" in the first bus cycle and "xxD0
Write "xxD0
completed
completed?)
"xxA7
Start
YES
16
"
16
"
NO
16
" in the second bus cycle, an auto
See Figure 25.11
25. Flash Memory Version