GD25Q64CFJS datasheet(41/74 Pages) GIGADEVICE

41 / 74 page

3.3V Uniform Sector

Dual and Quad Serial Flash

GD25Q64C

7.29.

Program/Erase Suspend (PES) (75H)

The Program/Erase Suspend command

“75H”, allows the system to interrupt a page program or sector/block erase

operation and then read data from any other sector or block. The Write Status Register command (01H/31H/11H) and

Erase/Program Security Registers command (44H,42H) and Erase commands (20H, 52H, D8H, C7H, 60H) and Page Program

command (02H / 32H) are not allowed during Program suspend. The Write Status Register command (01H/31H/11H) and

Erase Security Registers command (44H) and Erase commands (20H, 52H, D8H, C7H, 60H) are not allowed during Erase

suspend. Program/Erase Suspend is valid only during the page program or sector/block erase operation. A maximum of

time of “tsus” (See AC Characteristics) is required to suspend the program/erase operation.

The Program/Erase Suspend command will be accepted by the device only if the SUS2/SUS1 bit in the Status Register

equal to 0 and WIP bit equal to 1 while a Page Program or a Sector or Block Erase operation is on-going. If the SUS2/SUS1

bit equal to 1 or WIP bit equal to 0, the Suspend command will be ignored by the device. The WIP bit will be cleared from 1

to 0 within “tsus” and the SUS2/SUS1 bit will be set from 0 to 1 immediately after Program/Erase Suspend. A power-off

during the suspend period will reset the device and release the suspend state. The command sequence is show below.

Figure 34. Program/Erase Suspend Sequence Diagram

Command

75H

CS#

SCLK

High-Z

tSUS

Accept read command

GD25Q64CFJS Datasheet(PDF) 41 Page - GigaDevice Semiconductor (Beijing) Inc.