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| GD25Q128C Datasheet, PDF (51/69 Pages) ELM Electronics – 128M-bit Serial Flash | |||
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GD25Q128CxIGx 3.3V Uniform Sector Dual and Quad Serial Flash
http://www.elm-tech.com
Figure 36a. Read Individual Block/Sector Lock command Sequence Diagram (QPI)
CS#
SCLK
IO0
IO1
IO2
IO3
012345 678 9
Command
3DH
24Bits Address
X0
Lock Value Out
XX
XX
XX
7.32. Global Block/Sector Lock (7EH) or Unlock (98H)
All Block/Sector Lock bits can be set to 1 by the Global Block/Sector Lock command, or can set to 0 by the
Global Block/Sector Unlock command.
The Global Block/Sector Lock command (7EH) sequence: CS# goes low â SI: Sending Global Block/Sector
Lock command â CS# goes high. The command sequence is shown in Figure37.
The Global Block/Sector Unlock command (98H) sequence: CS# goes low â SI: Sending Global Block/Sector
Unlock command â CS# goes high. The command sequence is shown in Figure38.
Figure 37. The Global Block/Sector Lock Sequence Diagram
CS#
SCLK
SI
SO
01234567
Command
7EH
High-Z
69 - 51
Rev.1.2
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