FOR MOBILE APPLICATIONS
W25Q256FV
- 69 -
8.2.32
Erase / Program Resume (7Ah)
The Erase/Program Resume instruction “7Ah” must be written to resume the Sector or Block Erase
operation or the Page Program operation after an Erase/Program Suspend. The Resume instruction “7Ah”
will be accepted by the device only if the SUS bit in the Status Register equals to 1 and the BUSY bit
equals to 0. After issued the SUS bit will be cleared from 1 to 0 immediately, the BUSY 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. If the SUS bit equals to 0 or the BUSY bit equals to 1, the Resume instruction “7Ah”
will be ignored by the device. The Erase/Program Resume instruction sequence is shown in Figure 36a &
36b.
Resume instruction is ignored if the previous Erase/Program Suspend operation was interrupted by
unexpected power off. It is also required that a subsequent Erase/Program Suspend instruction not to be
issued within a minimum of time of “t
SUS
” following a previous Resume instruction.
/CS
CLK
DI
(IO
0
)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (7Ah)
Mode 0
Mode 3
Re
su
sume previously
spended Program or
Erase
Figure 36a. Erase/Program Resume Instruction (SPI Mode)
/CS
CLK
Mode 0
Mode 3
0
1
IO
0
IO
1
IO
2
IO
3
7Ah
Instruction
Mode 0
Mode 3
Resume previously
suspended Program or
Erase
Figure 36b. Erase/Program Resume Instruction (QPI Mode)
