MX25L6435EMI-10G Datasheet, PDF (61/87 Pages) Macronix International – HIGH PERFORMANCE SERIAL FLASH SPECIFICATION

MX25L6435E
10-32. Gang Block Lock/Unlock (GBLK/GBULK)
These instructions are only effective after WPSEL was executed. The GBLK/GBULK instruction is for enable/
disable the lock protection block of the whole chip.
The WREN (Write Enable) instruction is required before issuing GBLK/GBULK instruction.
The sequence of issuing GBLK/GBULK instruction is: CS# goes low → send GBLK/GBULK (7Eh/98h) instruc-
tion → CS# goes high.
The CS# must go high exactly at the byte boundary, otherwise, the instruction will be rejected and not be ex-
ecuted.
The SIO[3:1] are don't care when during this mode.
Figure 40. Gang Block Lock/Unlock (GBLK/GBULK) Sequence (Command 7E/98)
CS#
SCLK
SI
01234567
Command
7E/98
P/N: PM1784
REV. 0.03, MAR. 12, 2012
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