256Mb: 3V Embedded Parallel NOR Flash
Dual Operations and Multiple Bank Architecture
Table 21: Dual Operations Allowed in Same Bank
Commands Allowed in Same Bank
Read Auto
CFI
Query Select
Read
Status
Status
of bank
Program/Erase Program/Erase
Read
Yes
No
Register1
Program
Erase
Yes
–
Suspend
Yes2
Resume
Yes3
Idle
Yes
Yes
Yes
No
Yes
No
No
No
Yes
No
No
Yes
Yes
–
Programming
Erasing
Yes4
–
No
–
No
–
Yes5
–
Program
Yes
No
–
Yes
suspended
Erase
Yes6
Yes7
No
Yes
Yes6
No
–
Yes
suspended
1. Read status register is not a command. The status register can be read during a block
program or erase operation.
Notes:
2. Only after a program or erase operation in that bank.
3. Only after a Program or Erase Suspend command in that bank.
4. Only a program suspend.
5. Only an erase suspend.
6. Not allowed in the block or word that is being erased or programmed.
7. The status register can be read by addressing the block being erase suspended.
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