LE25S161 Datasheet, PDF (19/54 Pages) ON Semiconductor – Serial Flash Memory

LE25S161
10-4. Write Disable (WRDI)
This command sets status register WEN to "0" to prohibit unintentional writing. The write disable state (WEN "0") is
exited by setting WEN to "1" using the write enable (WREN: 06h).
"Figure 5. Write Disable (WRDI)" shows the timing waveforms.
The sequence of WRDI operation :
CS goes to low  input WRDI command (04h)
 CS goes to high (be executed by the rising CS edge)
Figure 5. Write Disable (WRDI)
CS
Mode3 _{0 1 2 3 4 5 6 7}
SCK
Mode0
8CLK
SI
04h
MSB
High Impedance
SO
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