AT45DB321D datasheet(29/57 Pages) ATMEL

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3597N–DFLASH–04/09

AT45DB321D

Note:

1. These legacy commands are not recommended for new designs.

Table 15-3.

Protection and Security Commands

Command

Opcode

Enable Sector Protection

3DH + 2AH + 7FH + A9H

Disable Sector Protection

3DH + 2AH + 7FH + 9AH

Erase Sector Protection Register

3DH + 2AH + 7FH + CFH

Program Sector Protection Register

3DH + 2AH + 7FH + FCH

Read Sector Protection Register

32H

Sector Lockdown

3DH + 2AH + 7FH + 30H

Read Sector Lockdown Register

35H

Program Security Register

9BH + 00H + 00H + 00H

Read Security Register

77H

Table 15-4.

Additional Commands

Command

Opcode

Main Memory Page to Buffer 1 Transfer

53H

Main Memory Page to Buffer 2 Transfer

55H

Main Memory Page to Buffer 1 Compare

60H

Main Memory Page to Buffer 2 Compare

61H

Auto Page Rewrite through Buffer 1

58H

Auto Page Rewrite through Buffer 2

59H

Deep Power-down

B9H

Resume from Deep Power-down

ABH

Status Register Read

D7H

Manufacturer and Device ID Read

9FH

Table 15-5.

Legacy Commands(1)

Command

Opcode

Buffer 1 Read

54H

Buffer 2 Read

56H

Main Memory Page Read

52H

Continuous Array Read

68H

Status Register Read

57H

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