Command Interface
M29FxxxFT, M29FxxxFB
Table 5.
Commands, 8-bit mode, BYTE = VIL
X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block. All values in the table are in hexadecimal.
Command Interface: only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A19, DQ8-DQ14 and DQ15 are Don’t
Care. DQ15A–1 is A–1 when BYTE is VIL or DQ15 when BYTE is VIH.
Read/Reset: After a Read/Reset command, read the memory as normal until another command is issued.
Auto Select: After an Auto Select command, read Manufacturer ID, Device ID or Block Protection Status.
Program, Unlock Bypass Program, Chip Erase, Block Erase: After these commands read the Status Register until the
Program/Erase Controller completes and the memory returns to Read Mode. Add additional Blocks during Block Erase
Command with additional Bus Write Operations until Timeout Bit is set.
Unlock Bypass: After the Unlock Bypass command issue Unlock Bypass Program or Unlock Bypass Reset commands.
Unlock Bypass Reset: After the Unlock Bypass Reset command read the memory as normal until another command is issued.
Erase Suspend: After the Erase Suspend command read non-erasing memory blocks as normal, issue Auto Select and
Program commands on non-erasing blocks as normal.
Erase Resume: After the Erase Resume command the suspended Erase operation resumes, read the Status Register until the
Program/Erase Controller completes and the memory returns to Read Mode.
CFI Query: Command is valid when device is ready to read array data or when device is in Auto Select mode.
Command
Le
ngt
h
Bus Write Operations
1st
2nd
3rd
4th
5th
6th
Addr
Data
Addr
Data
Addr
Data Addr
Data
Addr
Data
Addr
Data
Read/Reset
1X
F0
3
AAA
AA
555
55
X
F0
Auto Select
3
AAA
AA
555
55
AAA
90
Program
4
AAA
AA
555
55
AAA
A0
PA
PD
Unlock Bypass
3
AAA
AA
555
55
AAA
20
Unlock Bypass
Program
2
X
A0
PA
PD
Unlock Bypass Reset
2
X
90
X
00
Chip Erase
6
AAA
AA
555
55
AAA
80
AAA
AA
555
55
AAA
10
Block Erase
6+ AAA
AA
555
55
AAA
80
AAA
AA
555
55
BA
30
Erase Suspend
1
X
B0
Erase Resume
1
X
30
Read CFI Query
1
AA
98