Instructions
Table 5.
Instruction
WREN
WRDI
RDID
RDSR
(1)
WRLR
(1)
WRSR
(1)
RDLR
READ
M25PE40
Instruction set
Description
Write Enable
Write Disable
Read Identification
Read Status Register
Write to Lock Register
Write Status Register
Read Lock Register
Read Data Bytes
One-byte
instruction code
0000 0110
0000 0100
1001 1111
0000 0101
1110 0101
0000 0001
1110 1000
0000 0011
0000 1011
0000 1010
0000 0010
1101 1011
0010 0000
1101 1000
1100 0111
1011 1001
1010 1011
06h
04h
9Fh
05h
E5h
01h
E8h
03h
0Bh
0Ah
02h
DBh
20h
D8h
C7h
B9h
ABh
Addr Dummy
bytes bytes
0
0
0
0
3
0
3
3
3
3
3
3
3
3
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Data
bytes
0
0
1 to 3
1 to
∞
1
1
1
1 to
∞
1 to
∞
1 to 256
1 to 256
0
0
0
0
0
0
FAST_READ Read Data Bytes at Higher Speed
PW
PP
PE
SSE
(1)
SE
BE
(1)
DP
RDP
Page Write
Page Program
Page Erase
Subsector Erase
Sector Erase
Bulk Erase
Deep Power-down
Release from Deep Power-down
1. Instruction available only in the T9HX process (see
20/62
NUMONYX [ NUMONYX B.V ]
