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CHAPTER 19 512 KBIT FLASH MEMORY
19.8.5
Sector Erase Suspension
This section explains the procedure for inputting the sector erase suspend command to
suspend sector erasing. Data can be read from the sector not being erased.
I Sector Erase Suspension
• To cause flash memory sector erasing to suspend, continuously transmit the sector erasing
suspend command in the command sequence table from CPU to flash memory.
• The sector erasing suspend command suspends the sector erase currently being performed,
enabling data read from a sector that is currently not being erased.
• This command is only enabled during the sector erasing period including the erasing wait time;
it is ignored during the chip erasing period or during programming.
• The sector erasing suspend command is executed when the sector erasing suspend code
(B0
H
sector erasing suspend command is executed during sector erasing pause, the successive
command input is ignored.
• When the sector erasing suspend command is input during the sector erasing wait period, the
sector erase wait state ends immediately, the erasing is interrupted, and the erase stop state
occurs.
• When the erase suspend command is input during the sector erasing after the sector erase
wait period, the erase suspend state occurs after a maximum of 15 µs.
606
) is programmed. Arbitrary address in flash memory should be set for address. If the
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