GD25LQ40xIGx 1.8V Uniform Sector Dual and Quad Serial Flash
http://www.elm-tech.com
7.27. Program/Erase Resume (PER) (7AH)
The Program/Erase Resume command must be written to resume the program or sector/block erase operation
after a Program/Erase Suspend command. The Program/Erase command will be accepted by the device only if
the SUS2/SUS1 bit equal to 1 and the WIP bit equal to 0. After issued the SUS2/SUS1 bit in the status register
will be cleared from 1 to 0 immediately, the WIP bit will be set from 0 to 1 within 200ns and the Sector or
Block will complete the erase operation or the page will complete the program operation. The Program/Erase
Resume command will be ignored unless a Program/Erase Suspend is active. The command sequence is show in
Figure29.
Figure 29. Program/Erase Resume Sequence Diagram
CS#
0
1
2
3
4
5
6
7
SCLK
SI
Command
7AH
SO
Resume Erase/Program
Figure 29a. Program/Erase Resume Sequence Diagram (QPI)
CS#
0
1
SCLK
IO0
Command
7AH
IO1
IO2
IO3
Resume previously suspended
program or Erase
Rev.1.0
59 - 42
ELM [ ELM ELECTRONICS ]
