Datasheet

128 KByte Flash Module (S12XFTMR128K1V1)
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor 599
Upon clearing CCIF to launch the Set User Margin Level command, the Memory Controller will set the
user margin level for the targeted block and then set the CCIF flag.
Valid margin level settings for the Set User Margin Level command are defined in Table 19-54.
NOTE
User margin levels can be used to check that Flash memory contents have
adequate margin for normal level read operations. If unexpected results are
encountered when checking Flash memory contents at user margin levels, a
potential loss of information has been detected.
19.4.2.13 Set Field Margin Level Command
The Set Field Margin Level command, valid in special modes only, causes the Memory Controller to set
the margin level specified for future read operations of a specific P-Flash or D-Flash block.
Table 19-54. Valid Set User Margin Level Settings
CCOB
(CCOBIX=001)
Level Description
0x0000 Return to Normal Level
0x0001 User Margin-1 Level
1
1
Read margin to the erased state
0x0002 User Margin-0 Level
2
2
Read margin to the programmed state
Table 19-55. Set User Margin Level Command Error Handling
Register Error Bit Error Condition
FSTAT
ACCERR
Set if CCOBIX[2:0] != 001 at command launch
Set if command not available in current mode (see Table 19-28)
Set if an invalid global address [22:16] is supplied
Set if an invalid margin level setting is supplied
FPVIOL None
MGSTAT1 None
MGSTAT0 None
Table 19-56. Set Field Margin Level Command FCCOB Requirements
CCOBIX[2:0] FCCOB Parameters
000 0x0E
Global address [22:16] to identify the Flash
block
001 Margin level setting