EN25Q64-104FIP datasheet(18/60 Pages) EON

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This Data Sheet may be revised by subsequent versions

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or modifications due to changes in technical specifications.

EN25Q64

Rev. J, Issue Date: 2011/07/07

Reset-Enable (RSTEN) (66h) and Reset (RST) (99h)

The Reset operation is used as a system (software) reset that puts the device in normal operating

Ready mode. This operation consists of two commands: Reset-Enable (RSTEN) and Reset (RST).

To reset the EN25Q64 the host drives CS# low, sends the Reset-Enable command (66h), and drives

CS# high. Next, the host drives CS# low again, sends the Reset command (99h), and drives CS# high.

The Reset operation requires the Reset-Enable command followed by the Reset command. Any

command other than the Reset command after the Reset-Enable command will disable the Reset-

Enable.

A successful command execution will reset the Status register to data = 00h, see Figure 6 for SPI Mode

and Figure 6.1 for Quad Mode. A device reset during an active Program or Erase operation aborts the

operation, which can cause the data of the targeted address range to be corrupted or lost. Depending

on the prior operation, the reset timing may vary. Recovery from a Write operation requires more

software latency time ( tSR) than recovery from other operations.

Figure 6. Reset-Enable and Reset Sequence Diagram

Figure 6.1 . Reset-Enable and Reset Sequence Diagram under EQPI Mode

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