TMP86FS49AUG Datasheet, PDF (256/294 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

20. Serial PROM Mode
20.6 Operation Mode
TMP86FS49AUG
6. Flash memory status output mode
The status of the area from FFE0H to FFFFH, and the read protection condition are output as 7-byte code.
The external controller reads this code to recognize the flash memory status.
7. Flash memory read protection setting mode
This mode disables reading the flash memory data in parallel PROM mode. In the serial PROM mode, the
flash memory writing and RAM loader modes are disabled. To disable the flash memory read protection,
perform the chip erase in the flash memory erasing mode.
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