M28W640 STMicroelectronics, M28W640 Datasheet - Page 52

• Manufacturer Part Number: M28W640
• Description: 64 Mbit 4Mb x16/ Boot Block 3V Supply Flash Memory
• Manufacturer: STMicroelectronics

M28W640CT, M28W640CB
APPENDIX D. COMMAND INTERFACE AND PROGRAM/ERASE CONTROLLER STATE
Table 32. Write State Machine Current/Next, sheet 1 of 2.
Note: Cmd = Command, Elect.Sg. = Electronic Signature, Ers = Erase, Prog. = Program, Prot = Protection, Sus = Suspend.
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Prog. Setup
Read Array
Read Array
Read Array
Lock Setup
(complete)
Prot. Prog.
Prot. Prog.
Prot. Prog.
(complete)
(complete)
(complete)
Cmd.Error
Erase Sus
Erase Sus
Erase Sus
Erase Sus
Lock Cmd
(continue)
(continue)
(continue)
Prog. Sus
Prog. Sus
Prog. Sus
Prog. Sus
Read CFI
Read CFI
Read CFI
Elect.Sg.
Elect.Sg.
Read Sts
Elect.Sg.
Program
Program
Current
Query
Status
Status
Setup
Erase
Setup
Erase
Erase
Erase
State
Read
Read
Read
Read
Error
Lock
bit 7
SR
“1”
“1”
“1”
“1”
“1”
“1”
“1”
“1”
“0”
“1”
“1”
“0”
“1”
“1”
“1”
“1”
“1”
“1”
“1”
“0”
“1”
“1”
“1”
“1”
“1”
Electronic
Signature
Electronic
Signature
Electronic
Signature
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
When
Read
Array
Array
Array
Data
CFI
CFI
CFI
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array Prog.Setup
Read Array
Read Array
Erase Sus
Erase Sus
Erase Sus
Erase Sus
Prog. Sus
Prog. Sus
Prog. Sus
Prog. Sus
Array
Read
(FFh)
Erase Command Error
Lock Command Error
Program
Program
Program
Program
Program
Program
Program
Program
Program
Program
Program
Program
Program
Program
(10/40h)
Program Suspend to
Program Suspend to
Program Suspend to
Program Suspend to
Setup
Setup
Setup
Setup
Setup
Setup
Setup
Program (continue)
Setup
Setup
Setup
Setup
Setup
Setup
Setup
Erase (continue)
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Ers. Setup
Erase Sus
Erase Sus
Erase Sus
Erase Sus
(10/40h)
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Erase
Setup
Protection Register Program continue
Command Input (and Next State)
Protection Register Program
(complete)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
Confirm
Program
Program
Program
Program
Erase
(D0h)
Erase
Erase
Erase
Erase
Erase
Lock
Program
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Erase Sus
Erase Sus
Erase Sus
Erase Sus
Erase Sus
Lock Cmd
Prog. Sus
Prog. Sus
Prog. Sus
Prog. Sus
Prog. Sus
CmdError
Prog/Ers
Suspend
Read Sts
Read Sts
(B0h)
Erase
Error
(complete)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
(continue)
Prog/Ers
Resume
Program
Program
Program
Program
(D0h)
Erase
Erase
Erase
Erase
Erase
Lock
Program (continue)
Erase (continue)
Erase Sus
Erase Sus
Erase Sus
Erase Sus
Read Sts. Read Array
Prog. Sus
Prog. Sus
Prog. Sus
Prog. Sus
Erase Command Error
Read Sts
Read Sts
Read Sts
Read Sts
Read Sts
Read Sts
Read Sts
Read Sts
Lock Command Error
Status
Status
Status
Status
Status
Status
Status
Status
Status
Status
Read
(70h)
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Read Array
Erase Sus
Erase Sus
Erase Sus
Erase Sus
Prog. Sus
Prog. Sus
Prog. Sus
Prog. Sus
Status
Clear
(50h)