Freescale Semiconductor Tower System Module S12G240 TWR-S12G240 TWR-S12G240 Data Sheet
Product codes
TWR-S12G240
240 KByte Flash Module (S12FTMRG240K2V1)
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
1153
31.3.2.6
Flash Error Configuration Register (FERCNFG)
The FERCNFG register enables the Flash error interrupts for the FERSTAT flags.
All assigned bits in the FERCNFG register are readable and writable.
Table 31-13. FCNFG Field Descriptions
Field
Description
7
CCIE
Command Complete Interrupt Enable — The CCIE bit controls interrupt generation when a Flash command
has completed.
0 Command complete interrupt disabled
1 An interrupt will be requested whenever the CCIF flag in the FSTAT register is set (see
has completed.
0 Command complete interrupt disabled
1 An interrupt will be requested whenever the CCIF flag in the FSTAT register is set (see
4
IGNSF
Ignore Single Bit Fault — The IGNSF controls single bit fault reporting in the FERSTAT register (see
0 All single bit faults detected during array reads are reported
1 Single bit faults detected during array reads are not reported and the single bit fault interrupt will not be
1 Single bit faults detected during array reads are not reported and the single bit fault interrupt will not be
generated
1
FDFD
Force Double Bit Fault Detect — The FDFD bit allows the user to simulate a double bit fault during Flash array
read operations and check the associated interrupt routine. The FDFD bit is cleared by writing a 0 to FDFD.
0 Flash array read operations will set the DFDIF flag in the FERSTAT register only if a double bit fault is detected
1 Any Flash array read operation will force the DFDIF flag in the FERSTAT register to be set (see
0 Flash array read operations will set the DFDIF flag in the FERSTAT register only if a double bit fault is detected
1 Any Flash array read operation will force the DFDIF flag in the FERSTAT register to be set (see
) and an interrupt will be generated as long as the DFDIE interrupt enable in the FERCNFG
register is set (see
)
0
FSFD
Force Single Bit Fault Detect
—
The FSFD bit allows the user to simulate a single bit fault during Flash array
read operations and check the associated interrupt routine. The FSFD bit is cleared by writing a 0 to FSFD.
0 Flash array read operations will set the SFDIF flag in the FERSTAT register only if a single bit fault is detected
1 Flash array read operation will force the SFDIF flag in the FERSTAT register to be set (see
0 Flash array read operations will set the SFDIF flag in the FERSTAT register only if a single bit fault is detected
1 Flash array read operation will force the SFDIF flag in the FERSTAT register to be set (see
and an interrupt will be generated as long as the SFDIE interrupt enable in the FERCNFG register is set (see
)
Offset Module Base + 0x0005
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
DFDIE
SFDIE
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 31-10. Flash Error Configuration Register (FERCNFG)