MX25U2033EZUI-12G Datasheet, PDF (18/69 Pages) Macronix International – DATASHEET

MX25U2033E
The sequence of issuing RDSR instruction is: CS# goes low→ sending RDSR instruction code→ Status Register data
out on SO. (Please refer to "Figure 17. Read Status Register (RDSR) Sequence (Command 05)")
For user to check if Program/Erase operation is finished or not, RDSR instruction flow are shown as follows:
Program/Erase Flow with Read Array Data
start
WREN command
RDSR command*
WEL=1?
No
Yes
Program/erase command
Write program data/address
(Write erase address)
RDSR command
WIP=0?
No
Yes
RDSR command
Read WEL=0, BP[3:0], QE,
and SRWD data
Read array data
(same address of PGM/ERS)
Verify OK?
No
Yes
Program/erase successfully
Program/erase fail
Program/erase
another block?
No
Program/erase completed
Yes
* Issue RDSR to check BP[3:0].
* If WPSEL = 1, issue RDBLOCK to check the block status.
P/N: PM1743
REV. 1.4, APR. 10, 2014
18