Rainbow Electronics AT45DB642 User Manual

Page 16

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16

AT45DB321E [PRELIMINARY DATASHEET]

8784B–DFLASH–11/2012

Table 6-4.

Operations Allowed and Not Allowed During Suspend

Command

Operation During

Program Suspend in

Buffer 1 (PS1)

Operation During

Program Suspend in

Buffer 2 (PS2)

Operation During

Erase Suspend (ES)

Read Commands
Read Array (All Opcodes)

Allowed

Allowed

Allowed

Read Buffer 1 (All Opcodes)

Allowed

Allowed

Allowed

Read Buffer 2 (All Opcodes)

Allowed

Allowed

Allowed

Program and Erase Commands
Buffer 1 Write

Not Allowed

Allowed

Allowed

Buffer 2 Write

Allowed

Not Allowed

Allowed

Buffer 1 to Memory Program w/ Erase

Not Allowed

Not Allowed

Not Allowed

Buffer 2 to Memory Program w/ Erase

Not Allowed

Not Allowed

Not Allowed

Buffer 1 to Memory Program w/o Erase

Not Allowed

Not Allowed

Allowed

Buffer 2 to Memory Program w/o Erase

Not Allowed

Not Allowed

Allowed

Memory Program through Buffer 1 w/ Erase

Not Allowed

Not Allowed

Not Allowed

Memory Program through Buffer 2 w/ Erase

Not Allowed

Not Allowed

Not Allowed

Memory Program through Buffer 1 w/o Erase

Not Allowed

Not Allowed

Allowed

Auto Page Rewrite

Not Allowed

Not Allowed

Not Allowed

Page Erase

Not Allowed

Not Allowed

Not Allowed

Block Erase

Not Allowed

Not Allowed

Not Allowed

Sector Erase

Not Allowed

Not Allowed

Not Allowed

Chip Erase

Not Allowed

Not Allowed

Not Allowed

Protection and Security Commands
Enable Sector Protection

Not Allowed

Not Allowed

Not Allowed

Disable Sector Protection

Not Allowed

Not Allowed

Not Allowed

Erase Sector Protection Register

Not Allowed

Not Allowed

Not Allowed

Program Sector Protection Register

Not Allowed

Not Allowed

Not Allowed

Read Sector Protection Register

Allowed

Allowed

Allowed

Sector Lockdown

Not Allowed

Not Allowed

Not Allowed

Read Sector Lockdown

Allowed

Allowed

Allowed

Freeze Sector Lockdown State

Not Allowed

Not Allowed

Not Allowed

Program Security Register

Not Allowed

Not Allowed

Not Allowed

Read Security Register

Allowed

Allowed

Allowed

Additional Commands
Main Memory to Buffer 1 Transfer

Not Allowed

Allowed

Allowed

Main Memory to Buffer 2 Transfer

Allowed

Not Allowed

Allowed

Main Memory to Buffer 1 Compare

Allowed

Allowed

Allowed

Main Memory to Buffer 2 Compare

Allowed

Allowed

Allowed

Enter Deep Power-Down

Not Allowed

Not Allowed

Not Allowed

Resume from Deep Power-Down

Not Allowed

Not Allowed

Not Allowed

Enter Ultra-Deep Power-Down mode

Not Allowed

Not Allowed

Not Allowed

Read Configuration Register

Allowed

Allowed

Allowed

Read Status Register

Allowed

Allowed

Allowed

Read Manufacturer and Device ID

Allowed

Allowed

Allowed

Reset (via Hardware or Software)

Allowed

Allowed

Allowed

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