EN25S20A Datasheet, PDF (16/65 Pages) Eon Silicon Solution Inc. – 2 Megabit 1.8V Serial Flash Memory with 4Kbyte Uniform Sector

EN25S20A
Figure 9.1 Write Enable/Disable Instruction Sequence in QPI Mode
Read Status Register (RDSR) (05h)
The Read Status Register (RDSR) instruction allows the Status Register to be read. The Status
Register may be read at any time, even while a Program, Erase or Write Status Register cycle is in
progress. When one of these cycles is in progress, it is recommended to check the Write In Progress
(WIP) bit before sending a new instruction to the device. It is also possible to read the Status Register
continuously, as shown in Figure 10.
The instruction sequence is shown in Figure 10.1 while using the Enable Quad Peripheral Interface
mode (EQPI) (38h) command.
Figure 10. Read Status Register Instruction Sequence Diagram
This Data Sheet may be revised by subsequent versions
16
or modifications due to changes in technical specifications.
©2014 Eon Silicon Solution, Inc.,
Rev. A, Issue Date: 2014/01/16
www.eonssi.com