tmp89fm42k TOSHIBA Semiconductor CORPORATION, tmp89fm42k Datasheet - Page 371

• Manufacturer Part Number: tmp89fm42k
• Description: 8 Bit Microcontroller Tlcs-870/c1 Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA003
22.8.1.1
specifically, ERASEC is used to specify the address of an area to be erased.
Executing Sector Erase with 0xFFFA memory set to "0xFF" or with the security program enabled will cause
the device to go into an infinite loop state.
security program in flash memory is disabled. Therefore, to disable the security program in flash memory,
execute Chip Erase, not Sector Erase.
The flash memory erase command is used to specify an area in flash memory to be erased at n-th-2 byte;
If data of less than 0x20 is specified, Sector Erase (erasing flash memory in 4K-byte units) is executed.
If data of more than 0x20 is specified, Chip Erase (total erasure of flash memory) is executed, and the
Specifying the erase area
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