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UM1635 Datasheet(PDF) 21 Page - STMicroelectronics

Part # UM1635
Description  Standard software driver for C90FL2 Flash
PDF  42 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1635 Datasheet(HTML) 21 Page - STMicroelectronics

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UM1635
API specification
Table 27 lists the Suspend Flag values returned against the Suspend State and the Flash
block status.
Table 26. SuspendState definitions
Argument
Code
Description
Valid operation after suspend
NO_OPERTION
0
There is no program/erase
operation.
Erasing operation, programming
operation and read are valid on
both main array space and
shadow row.
PGM_WRITE
1
There is a program
sequence in interlock write
stage.
Only read is valid on both main
array space and shadow row.
ERS_WRITE
2
There is an erase
sequence in interlock write
stage.
Only read is valid on both main
array space and shadow row.
ERS_SUS_PGM_WRITE
3
There is an erase-suspend
program sequence in
interlock write stage.
Only read is valid on both main
array space and shadow row.
PGM_SUS
4
The program operation is
in suspended state.
Only read is valid on both main
array space and shadow row.
ERS_SUS
5
The erase operation on
main array is in suspended
state.
Programming operation is valid
on both main arrayspace and
shadow row. Read is valid on
both main array space and
shadow row.
SHADOW_ERS_SUS
6
The erase operation on
shadow row is in
suspended state.
Programming operation is valid
on both main array space and
shadow row.
Read is valid on both main array
space and shadow space.
ERS_SUS_PGM_SUS
7
The erase-suspended
program operation is in
suspended state.
Only read is valid on both main
array space and shadow row.
Table 27.
Suspending state and flag vs. C90FL2 status
suspendState
EHV
ERS
ESUS
PGM
PSUS
PEAS
suspendFlag
NO_OPERATION
X
0
X
0
X
X
FALSE
PGM_WRITE
0
0
X
1
0
X
FALSE
ERS_WRITE
0
1
0
0
X
X
FALSE
ESUS_PGM_WRITE
0
1
1
1
0
X
FALSE
PGM_SUS
1
0
X
1
0
X
TRUE
X0
X
1
1
X
FALSE
ERS_SUS
1
1
0
0
X
0
TRUE
X1
1
0
X
0
FALSE



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