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S912XEP100J5MAG Datasheet, PDF (973/1324 Pages) Freescale Semiconductor, Inc – Features of the MC9S12XE-Family are listed here. Please see Table D-2.for memory options and Table D-2. for the peripheral features that are available on the different family members. | |||
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Chapter 26 384 KByte Flash Module (S12XFTM384K2V1)
Table 26-18. FERSTAT Field Descriptions
Field
Description
7
ERSERIF
EEE Erase Error Interrupt Flag â The setting of the ERSERIF ï¬ag occurs due to an error in a Flash erase
command that resulted in the erase operation not being successful during EEE operations. The ERSERIF ï¬ag
is cleared by writing a 1 to ERSERIF. Writing a 0 to the ERSERIF ï¬ag has no effect on ERSERIF. While
ERSERIF is set, it is possible to write to the buffer RAM EEE partition but the data written will not be transferred
to the D-Flash EEE partition.
0 Erase command successfully completed on the D-Flash EEE partition
1 Erase command failed on the D-Flash EEE partition
6
PGMERIF
EEE Program Error Interrupt Flag â The setting of the PGMERIF ï¬ag occurs due to an error in a Flash
program command that resulted in the program operation not being successful during EEE operations. The
PGMERIF ï¬ag is cleared by writing a 1 to PGMERIF. Writing a 0 to the PGMERIF ï¬ag has no effect on
PGMERIF. While PGMERIF is set, it is possible to write to the buffer RAM EEE partition but the data written will
not be transferred to the D-Flash EEE partition.
0 Program command successfully completed on the D-Flash EEE partition
1 Program command failed on the D-Flash EEE partition
4
EPVIOLIF
EEE Protection Violation Interrupt Flag âThe setting of the EPVIOLIF ï¬ag indicates an attempt was made to
write to a protected area of the buffer RAM EEE partition. The EPVIOLIF ï¬ag is cleared by writing a 1 to
EPVIOLIF. Writing a 0 to the EPVIOLIF ï¬ag has no effect on EPVIOLIF. While EPVIOLIF is set, it is possible to
write to the buffer RAM EEE partition as long as the address written to is not in a protected area.
0 No EEE protection violation
1 EEE protection violation detected
3
ERSVIF1
EEE Error Interrupt 1 Flag âThe setting of the ERSVIF1 ï¬ag indicates that the memory controller was unable
to change the state of a D-Flash EEE sector. The ERSVIF1 ï¬ag is cleared by writing a 1 to ERSVIF1. Writing a
0 to the ERSVIF1 ï¬ag has no effect on ERSVIF1. While ERSVIF1 is set, it is possible to write to the buffer RAM
EEE partition but the data written will not be transferred to the D-Flash EEE partition.
0 No EEE sector state change error detected
1 EEE sector state change error detected
2
ERSVIF0
EEE Error Interrupt 0 Flag âThe setting of the ERSVIF0 ï¬ag indicates that the memory controller was unable
to format a D-Flash EEE sector for EEE use. The ERSVIF0 ï¬ag is cleared by writing a 1 to ERSVIF0. Writing a
0 to the ERSVIF0 ï¬ag has no effect on ERSVIF0. While ERSVIF0 is set, it is possible to write to the buffer RAM
EEE partition but the data written will not be transferred to the D-Flash EEE partition.
0 No EEE sector format error detected
1 EEE sector format error detected
1
DFDIF
Double Bit Fault Detect Interrupt Flag â The setting of the DFDIF ï¬ag indicates that a double bit fault was
detected in the stored parity and data bits during a Flash array read operation or that a Flash array read operation
was attempted on a Flash block that was under a Flash command operation. The DFDIF ï¬ag is cleared by writing
a 1 to DFDIF. Writing a 0 to DFDIF has no effect on DFDIF.
0 No double bit fault detected
1 Double bit fault detected or an invalid Flash array read operation attempted
0
SFDIF
Single Bit Fault Detect Interrupt Flag â With the IGNSF bit in the FCNFG register clear, the SFDIF ï¬ag
indicates that a single bit fault was detected in the stored parity and data bits during a Flash array read operation
or that a Flash array read operation was attempted on a Flash block that was under a Flash command operation.
The SFDIF ï¬ag is cleared by writing a 1 to SFDIF. Writing a 0 to SFDIF has no effect on SFDIF.
0 No single bit fault detected
1 Single bit fault detected and corrected or an invalid Flash array read operation attempted
26.3.2.9 P-Flash Protection Register (FPROT)
The FPROT register defines which P-Flash sectors are protected against program and erase operations.
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor
973
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