Chapter 25 256 KByte Flash Module (S12XFTM256K2V1)
MC9S12XE-Family Reference Manual , Rev. 1.19
948
Freescale Semiconductor
•
Program a duplicate DFPART to the EEE nonvolatile information register at global address
0x12_0002 (see
•
Program ERPART to the EEE nonvolatile information register at global address 0x12_0004 (see
)
•
Program a duplicate ERPART to the EEE nonvolatile information register at global address
0x12_0006 (see
The D-Flash user partition will start at global address 0x10_0000. The buffer RAM EEE partition will end
at global address 0x13_FFFF. After the Partition D-Flash operation has completed, the CCIF flag will set.
Running the Partition D-Flash command a second time will result in the ACCERR bit within the FSTAT
register being set. The data value written corresponds to the number of 256 byte sectors allocated for either
direct D-Flash access (DFPART) or buffer RAM EEE access (ERPART).
25.4.3
Interrupts
The Flash module can generate an interrupt when a Flash command operation has completed or when a
Flash command operation has detected an EEE error or an ECC fault.
Table 25-78. Partition D-Flash Command Error Handling
Register
Error Bit
Error Condition
FSTAT
ACCERR
Set if CCOBIX[2:0] != 010 at command launch
Set if a Load Data Field command sequence is currently active
Set if command not available in current mode (see
)
Set if partitions have already been defined
Set if an invalid DFPART or ERPART selection is supplied
FPVIOL
None
MGSTAT1
Set if any errors have been encountered during the read
MGSTAT0
Set if any non-correctable errors have been encountered during the read
FERSTAT
EPVIOLIF
None
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages
