Datasheet

Instructions M95080-W M95080-R M95080-DF
16/44 DocID022540 Rev 2
6 Instructions
Each command is composed of bytes (MSBit transmitted first), initiated with the instruction
byte, as summarized in
Table 3.
If an invalid instruction is sent (one not contained in Table 3), the device automatically enters
a Wait state until deselected.
For read and write commands to memory array and Identification Page, the address is
defined by two bytes as explained in
Table 4.
Table 3. Instruction set
Instruction Description
Instruction
format
WREN Write Enable 0000 0110
WRDI Write Disable 0000 0100
RDSR Read Status Register 0000 0101
WRSR Write Status Register 0000 0001
READ Read from Memory Array 0000 0011
WRITE Write to Memory Array 0000 0010
RDID
(1)
1. Instruction available only for the M95080-D device.
Read Identification Page 1000 0011
WRID
(1)
Write Identification Page 1000 0010
RDLS
(1)
Reads the Identification Page lock status 1000 0011
LID
(1)
Locks the Identification page in read-only mode 1000 0010
Table 4. Significant bits within the two address bytes
(1)(2)
Instructions
MSB Address byte LSB Address byte
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
READ or
WRITE
xxxxxxA9A8A7A6A5A4A3A2A1A0
RDID or
WRID
(3)
00000000000A4A3A2A1A0
RDLS or
LID
(3)
0000010000000000
1. A: Significant address bit.
2. x: bit is Don’t Care.
3. Instruction available only for the M95080-D device.