W25Q256JVEIQ-TR Datasheet, PDF (77/92 Pages) Winbond – 3V 256M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI

W25Q256JV
8.2.49 Global Block/Sector Lock (7Eh)
All Block/Sector Lock bits can be set to 1 by the Global Block/Sector Lock instruction. The command must
be issued by driving /CS low, shifting the instruction code “7Eh” into the Data Input (DI) pin on the rising
edge of CLK, and then driving /CS high.
/CS
CLK
Mode 3
Mode 0
DI
(IO₀)
DO
(IO₁)
0 1 2 3 4 5 6 7 Mode 3
Mode 0
Instruction (7Eh)
High Impedance
Figure 58. Global Block Lock Instruction for SPI
8.2.50 Global Block/Sector Unlock (98h)
All Block/Sector Lock bits can be set to 0 by the Global Block/Sector Unlock instruction. The command
must be issued by driving /CS low, shifting the instruction code “98h” into the Data Input (DI) pin on the
rising edge of CLK, and then driving /CS high.
/CS
CLK
Mode 3
Mode 0
DI
(IO₀)
DO
(IO₁)
01234567
Instruction (98h)
Mode 3
Mode 0
High Impedance
Figure 59. Global Block Unlock Instruction
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Publication Release Date: September 20, 2016
Revision B