S912XEG128J2MAA Datasheet, PDF (939/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 25 256 KByte Flash Module (S12XFTM256K2V1)
Valid margin level settings for the Set Field Margin Level command are defined in Table 25-61.
Table 25-61. Valid Set Field Margin Level Settings
CCOB
(CCOBIX=001)
Level Description
0x0000
Return to Normal Level
0x0001
User Margin-1 Level⁽¹⁾
0x0002
User Margin-0 Level⁽²⁾
0x0003
Field Margin-1 Level¹
0x0004
Field Margin-0 Level²
1. Read margin to the erased state
2. Read margin to the programmed state
Register
FSTAT
FERSTAT
Table 25-62. Set Field Margin Level Command Error Handling
Error Bit
ACCERR
FPVIOL
MGSTAT1
MGSTAT0
EPVIOLIF
Error Condition
Set if CCOBIX[2:0] != 001 at command launch
Set if a Load Data Field command sequence is currently active
Set if command not available in current mode (see Table 25-30)
Set if an invalid global address [22:16] is supplied
Set if an invalid margin level setting is supplied
None
None
None
None
CAUTION
Field margin levels must only be used during verify of the initial factory
programming.
NOTE
Field margin levels can be used to check that Flash memory contents have
adequate margin for data retention at the normal level setting. If unexpected
results are encountered when checking Flash memory contents at field
margin levels, the Flash memory contents should be erased and
reprogrammed.
25.4.2.15 Full Partition D-Flash Command
The Full Partition D-Flash command allows the user to allocate sectors within the D-Flash block for
applications and a partition within the buffer RAM for EEPROM access. The D-Flash block consists of
128 sectors with 256 bytes per sector.
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor
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