Table 1. Read Commands
Command
Main Memory Page Read
Continuous Array Read
Buffer 1 Read
Buffer 2 Read
Buffer 1 Read
Buffer 2 Read
Table 2. Program and Erase Commands
Command
Buffer 1 Write
Buffer 2 Write
Buffer 1 to Main Memory Page Program
Buffer 1 to Main Memory Page Program,
Fast Program
Buffer 2 to Main Memory Page Program
Buffer 2 to Main Memory Page Program,
Fast Program
Sector 0a Erase
Sector 0b-63 Erase
Table 3. Additional Commands
Command
Main Memory Page to Buffer 1 Transfer
Main Memory Page to Buffer 2 Transfer
Main Memory Page to Buffer 1 Compare
Main Memory Page to Buffer 2 Compare
Status Register Read
Manufacturer and Device ID Read
Serial/8-bit
Both
Both
Serial
Serial
8-bit
8-bit
Serial/8-bit
Both
Both
Both
Both
Both
Both
Both
Both
Serial/8-bit
Both
Both
Both
Both
Both
Serial
Opcode
D2h
E8h
D4h
D6h
54h
56h
Opcode
84h
87h
88h
98h
89h
99h
50h
7Ch
Opcode
53h
55h
60h
61h
D7h
9Fh
Security Register Program
(1)
Both
9Ah
Security Register Read Both 77h
Note: 1. The Security Register Program command utilizes data stored in Buffer 1. Therefore,
this command must be used in conjunction with the Buffer 1 write command. See the
Security Register description for details.
12
AT45CS1282 [Preliminary]
3447A–DFLSH–2/04
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