Table 8-1 – Rainbow Electronics AT25DQ321 User Manual

Page 22

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22

AT25DQ321 [DATASHEET]

8718D–DFLASH–12/2012

Table 8-1.

Operations Allowed and Not Allowed During a Program or Erase Suspend

Figure 8-9. Program/Erase Suspend

Command

Operation During

Program Suspend

Operation During

Erase Suspend

Read Commands

Read Array (All Opcodes)

Allowed

Allowed

Program and Erase Commands

Block Erase

Not Allowed

Not Allowed

Chip Erase

Not Allowed

Not Allowed

Byte/Page Program (All Opcodes)

Not Allowed

Allowed

Program/Erase Suspend

Not Allowed

Allowed

Program/Erase Resume

Allowed

Allowed

Protection Commands

Write Enable

Not Allowed

Allowed

Write Disable

Not Allowed

Allowed

Protect Sector

Not Allowed

Not Allowed

Unprotect Sector

Not Allowed

Not Allowed

Global Protect/Unprotect

Not Allowed

Not Allowed

Read Sector Protection Registers

Allowed

Allowed

Security Commands

Sector Lockdown

Not Allowed

Not Allowed

Freeze Sector Lockdown State

Not Allowed

Not Allowed

Read Sector Lockdown Registers

Allowed

Allowed

Program OTP Security Register

Not Allowed

Not Allowed

Read OTP Security Register

Allowed

Allowed

Status and Configuration Register Commands

Read Status Register

Allowed

Allowed

Write Status Register (All Opcodes)

Not Allowed

Not Allowed

Read Configuration Register

Allowed

Allowed

Write Configuration Register

Not Allowed

Not Allowed

Miscellaneous Commands

Reset

Allowed

Allowed

Read Manufacturer and Device ID

Allowed

Allowed

Deep Power-Down

Not Allowed

Not Allowed

Resume from Deep Power-Down

Not Allowed

Not Allowed

SO

SI

SCK

CS

MSB

2

3

1

0

1

0

1

1

0

0

0

0

6

7

5

4

Opcode

High-impedance

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