S912XEG384J3VA Datasheet, PDF (1125/1324 Pages) Freescale Semiconductor, Inc – MC9S12XEP100 Reference Manual Covers MC9S12XE Family

Chapter 28 768 KByte Flash Module (S12XFTM768K4V2)
Table 28-59. Set User Margin Level Command Error Handling
Register
Error Bit
Error Condition
Set if CCOBIX[2:0] != 001 at command launch
Set if a Load Data Field command sequence is currently active
FSTAT
ACCERR
Set if command not available in current mode (see Table 28-30)
Set if an invalid global address [22:16] is supplied⁽¹⁾
Set if an invalid margin level setting is supplied
FPVIOL None
MGSTAT1 None
MGSTAT0 None
FERSTAT
EPVIOLIF None
1. As defined by the memory map for FTM1024K5.
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.
28.4.2.14 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 28-60. Set Field Margin Level Command FCCOB Requirements
CCOBIX[2:0]
000
001
0x0E
FCCOB Parameters
Global address [22:16] to identify the Flash
block
Margin level setting
Upon clearing CCIF to launch the Set Field Margin Level command, the Memory Controller will set the
field margin level for the targeted block and then set the CCIF flag.
Valid margin level settings for the Set Field Margin Level command are defined in Table 28-61.
Table 28-61. Valid Set Field Margin Level Settings
CCOB
(CCOBIX=001)
0x0000
0x0001
Level Description
Return to Normal Level
User Margin-1 Level⁽¹⁾
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