M28R400CT, M28R400CB
Command Input (and Next State)
Lock
Read
Elect.Sg.
(90h)
Read CFI
Query
(98h)
Lock Down
Confirm
(2Fh)
Unlock
Confirm
(D0h)
Chip Erase
Set Up
Current State
Lock Setup
Prot. Prog.
Setup (C0h)
Confirm
(01h)
(60h)
(80h)
Prog.
Suspend
Read
Prog.
Suspend
Read CFI
Query
Program
Suspend
Read Array
Prog. Suspend
Read Elect.Sg.
Program
(continue)
Program Suspend Read Array
Program Suspend Read Array
Elect.Sg.
Prog.
Suspend
Read
Prog.
Suspend
Read CFI
Query
Program
Suspend
Read Array
Prog. Suspend
Read CFI
Program
(continue)
Elect.Sg.
Program
(complete)
Read
Elect.Sg.
Read
CFIQuery
Prot. Prog.
Setup
Chip Erase
Set Up
Lock Setup
Read Array
Read Array
Block Erase
Command
Error
Block Erase
Setup
Erase
(continue)
Block Erase Command Error
Block Erase
Cmd.Error
Read
Elect.Sg.
Read CFI
Query
Prot. Prog.
Lock Setup
Chip Erase
Set Up
Setup
Block Erase
(continue)
Block Erase (continue)
Erase
Suspend
Read
Erase
Suspend
Read CFI
Query
Block Erase
Suspend
Read Status
Erase
Suspend
Read Array
Erase
(continue)
Lock Setup
Lock Setup
Lock Setup
Erase Suspend Read Array
Elect.Sg.
Erase
Suspend
Read
Erase
Suspend
Read CFI
Query
Block Erase
Suspend Read
Array
Erase
Suspend
Read Array
Erase
(continue)
Erase Suspend Read Array
Erase Suspend Read Array
Erase Suspend Read Array
Elect.Sg.
Erase
Suspend
Read
Erase
Suspend
Read CFI
Query
Block Erase
Suspend Read
Elect.Sg.
Erase
Suspend
Read Array
Erase
(continue)
Elect.Sg.
Erase
Suspend
Read
Erase
Suspend
Read CFI
Query
Block Erase
Suspend Read
CFI Query
Erase
Suspend
Read Array
Erase
(continue)
Lock Setup
Lock Setup
Elect.Sg.
Block Erase
(complete)
Read
Elect.Sg.
Read CFI
Query
Prot. Prog.
Setup
Chip Erase
Set Up
Read Array
Chip Erase
Command
Error
Chip Erase
Setup
Erase
(continue)
Chip Erase Command Error
Chip Erase
Cmd.Error
Read
Elect.Sg.
Read CFI
Query
Prot. Prog.
Lock Setup
Chip Erase
Set Up
Read Array
Read Array
Setup
Chip Erase
(continue)
Chip Erase (continue)
Chip Erase
(complete)
Read
Elect.Sg.
Read CFI
Query
Prot. Prog.
Setup
Chip Erase
Set Up
Lock Setup
Note: Cmd = Command, Elect.Sg. = Electronic Signature, Prog. = Program, Prot = Protection.
46/48