Chapter 28 768 KByte Flash Module (S12XFTM768K4V2)
MC9S12XE-Family Reference Manual , Rev. 1.19
Freescale Semiconductor
1127
— ERPART <= 16 (maximum number of 256 byte sectors in buffer RAM)
— If ERPART > 0, 128 - DFPART >= 12 (minimum number of 256 byte sectors in the D-Flash
block required to support EEE)
— If ERPART > 0, ((128-DFPART)/ERPART) >= 8 (minimum ratio of D-Flash EEE space to
buffer RAM EEE space to support EEE)
•
Erase the D-Flash block and the EEE nonvolatile information register
•
Program DFPART to the EEE nonvolatile information register at global address 0x12_0000 (see
)
•
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 Full Partition D-Flash operation has completed, the CCIF flag will
set.
Running the Full Partition D-Flash command a second time will result in the previous partition values and
the entire D-Flash memory being erased. 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).
28.4.2.16 Erase Verify D-Flash Section Command
The Erase Verify D-Flash Section command will verify that a section of code in the D-Flash user partition
is erased. The Erase Verify D-Flash Section command defines the starting point of the data to be verified
and the number of words.
Table 28-64. Full 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 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
