Flash Controller - Epson S1R75801F00A Technical Manual

S1R72803F00A

7.6 FLASH CONTROLLER

This IC is provided with a function to perform Erase and
Write to the Flash ROM.
(1) Chip Erase
According to a specified sequence, you can erase all
memory cells in the built-in Flash ROM to put them
in "1" status.
After erasing the chip, check that the data of all
memory cells is "1".
(2) Sector Erase
This IC is ready for the Sector Erase in the unit of
512 words/sector.
According to a specified sequence, you can erase all
18
memory cells in the built-in Flash ROM to put them
in "1" status.
After erasing the chip, check that the data of all
memory cells is "1".
(3) Write
Write is complete if you continue writing Write data
in the unit of word until writing of all sectors (512
words) finishes.
On completion of the Sector Write, compare all data
in the sectors with original data for confirmation.
You cannot change the data of the memory cell from
"0" to "1" by writing.
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