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PM0020 Datasheet(PDF) 19 Page - STMicroelectronics

Part # PM0020
Description  STR91xFA Flash programming manual
PDF  87 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0020 Datasheet(HTML) 19 Page - STMicroelectronics

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PM00020
STR91xFA Flash memory
19/87
1.10.1
Memory bank concurrency
While one bank is in read mode, the other bank can be programmed or erased. The two
Flash banks do not support programming or erasing in parallel.
A bank can always be read while erasure is in progress in the other bank.
Flash sector erasure may be suspended while data is read from other sectors of the same
Flash memory bank and then resumed after reading.
Table 6 lists the allowed dual operations in both banks and on the same bank.
Table 6.
Rules for dual bank operations
Bank Status
Commands allowed in other bank
Read Array/
Read Status Reg./
Read Electronic
Signature
Program
Sector Erase
Program/Erase
Suspend
Program/Erase
Resume
Idle
Yes
Yes
Yes
Yes
Yes
Programming
Yes
-
-
Yes
-
Erasing
Yes
-
-
Yes
-
Programming
Suspended
Yes
-
-
-
Yes
Erase Suspended
Yes
Yes
-
-
Yes



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