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UM1635 Datasheet(PDF) 24 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) 24 Page - STMicroelectronics

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API specification
UM1635
24/42
DocID024604 Rev 2
Return values
Troubleshooting
Comments
Table 34 defines and describes various blkLockIndicator values.
For Shadow/Low/Mid address spaces, there are two block lock levels. The secondary level
of block locking provides an alternative means to protect blocks from being modified. A
logical “OR” of the corresponding bits in the primary and secondary lock registers for a block
blkLockEnabled
Indicate whether the address space block
locking register is enabled for register writes
TRUE – The address space block locking
register is enabled for register writes.
FALSE – The address space block locking
register is disabled for register writes.
blkLockState
Returns the blocks’ locking status of indicated
locking level in the given address space
Bit mapped value indicating the locking status
of the specified locking level and address
space.
1: The block is locked from program/erase.
0: The block is ready for program/erase
Table 31. Arguments for GetLock() (continued)
Argument
Description
Range
Table 32. Return values for GetLock()
Type
Description
Possible values
UINT32
Successful completion or error value.
C90FL_OK
C90FL_ERROR_LOCK_INDICATOR
Table 33. Troubleshooting for GetLock()
Returned Error Bits
Possible causes
Solution
C90FL_ERROR_LOCK_IN
DICATOR
The input blkLockIndicator is
invalid.
Set this argument to correct value
listed in Table 30
Table 34. blkLockIndicator Definitions
Code name
Value
Description
LOCK_SHADOW_PRIMARY
0
Primary block lock protection of shadow address space
LOCK_SHADOW_SECONDARY
1
Secondary block lock protection of shadow address space
LOCK_LOW_PRIMARY
2
Primary block lock protection of low address space
LOCK_LOW_SECONDARY
3
Secondary block lock protection of low address space
LOCK_MID_PRIMARY
4
Primary block lock protection of mid address space
LOCK_MID_SECONDARY
5
Secondary block lock protection of mid address space
LOCK_HIGH
6
Block lock protection of high address space



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