S9S12XS256J0CAL Datasheet, PDF (649/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

64 KByte Flash Module (S12XFTMR64K1V1)
Table 20-53. Set User Margin Level Command FCCOB Requirements
CCOBIX[2:0]
000
001
0x0D
FCCOB Parameters
Global address [22:16] to identify the
Flash block
Margin level setting
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 20-54.
Table 20-54. Valid Set User Margin Level Settings
CCOB
(CCOBIX=001)
Level Description
0x0000
Return to Normal Level
0x0001
User Margin-1 Level¹
0x0002
User Margin-0 Level²
1 _{Read margin to the erased state}
2 _{Read margin to the programmed state}
Table 20-55. Set User Margin Level Command Error Handling
Register
Error Bit
Error Condition
Set if CCOBIX[2:0] != 001 at command launch
ACCERR
Set if command not available in current mode (see Table 20-28)
Set if an invalid global address [22:16] is supplied¹
FSTAT
Set if an invalid margin level setting is supplied
FPVIOL None
MGSTAT1 None
MGSTAT0 None
1 _{As defined by the memory map for FTMR128K1.}
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.
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor
649