M58WR064 STMICROELECTRONICS [STMicroelectronics], M58WR064 Datasheet - Page 12

• Manufacturer Part Number: M58WR064
• Description: 64 Mbit 4Mb x 16, Multiple Bank, Burst 1.8V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M58WR064ET, M58WR064EB
COMMAND INTERFACE
All Bus Write operations to the memory are inter-
preted by the Command Interface. Commands
consist of one or more sequential Bus Write oper-
ations. An internal Program/Erase Controller han-
dles all timings and verifies the correct execution
of the Program and Erase commands. The Pro-
gram/Erase Controller provides a Status Register
whose output may be read at any time to monitor
the progress or the result of the operation.
The Command Interface is reset to read mode
when power is first applied, when exiting from Re-
set or whenever V
mand sequences must be followed exactly. Any
invalid combination of commands will be ignored.
Refer to Table 4, Command Codes and Appendix
D, Tables 40, 41, 42 and 43, Command Interface
States - Modify and Lock Tables, for a summary of
the Command Interface.
The Command Interface is split into two types of
commands: Standard commands and Factory
Program commands. The following sections ex-
plain in detail how to perform each command.
12/82
DD
is lower than V
LKO
. Com-
Table 4. Command Codes
Hex Code
2Fh
B0h
C0h
D0h
FFh
01h
03h
10h
20h
30h
35h
40h
50h
56h
60h
70h
75h
80h
90h
98h
Block Lock Confirm
Set Configuration Register Confirm
Alternative Program Setup
Block Erase Setup
Block Lock-Down Confirm
Enhanced Factory Program Setup
Double Word Program Setup
Program Setup
Clear Status Register
Quadruple Word Program Setup
Block Lock Setup, Block Unlock Setup,
Block Lock Down Setup and Set
Configuration Register Setup
Read Status Register
Quadruple Enhanced Factory Program
Setup
Bank Erase Setup
Read Electronic Signature
Read CFI Query
Program/Erase Suspend
Protection Register Program
Program/Erase Resume, Block Erase
Confirm, Bank Erase Confirm, Block
Unlock Confirm or Enhanced Factory
Program Confirm
Read Array
Command