mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 831

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

37.3.22 Fault Mode Status (FTMx_FMS)
This register contains the fault detection flags, write protection enable bit, and the logic
OR of the enable fault inputs.
Addresses: FTM0_FMS is FFFF_8440h base + 2Bh offset = FFFF_846Bh
Freescale Semiconductor, Inc.
FAULTF3
Reserved
FAULTIN
FAULTF
WPEN
Reset
Field
Read
Write
7
6
5
4
3
Bit
FTM1_FMS is FFFF_8480h base + 2Bh offset = FFFF_84ABh
FAULTF
Fault Detection Flag
Represents the logic OR of the individual FAULTFn bits. Clear FAULTF by reading the FMS register while
FAULTF is set and then writing a 0 to FAULTF while there is no existing fault condition at the enabled
fault inputs. Writing a 1 to FAULTF has no effect.
If another fault condition is detected in an enabled fault input before the clearing sequence is completed,
the sequence is reset so FAULTF remains set after the clearing sequence is completed for the earlier
fault condition. FAULTF is also cleared when FAULTFn bits are cleared individually.
0
1
Write Protection Enable
The WPEN bit is the negation of the WPDIS bit. WPEN is set when 1 is written to it. WPEN is cleared
when WPEN bit is read as a 1 and then 1 is written to WPDIS. Writing 0 to WPEN has no effect.
0
1
Fault Inputs
Represents the logic OR of the enabled fault input after its filter (if its filter is enabled) when fault control is
enabled.
0
1
This read-only bit is reserved and always has the value zero.
Fault Detection Flag 3
Set by hardware when fault control is enabled, the corresponding fault input is enabled and a fault
condition is detected in the fault input.
7
0
0
No fault condition was detected.
A fault condition was detected.
Write protection is disabled. Write protected bits can be written.
Write protection is enabled. Write protected bits cannot be written.
The value of the fault input is 0.
The value of the fault input is 1.
WPEN
0
6
MCF51JF128 Reference Manual, Rev. 2, 03/2011
FTMx_FMS field descriptions
FAULTIN
Table continues on the next page...
0
5
Preliminary
0
0
4
Description
FAULTF3
0
0
3
FAULTF2
0
0
2
Chapter 37 FlexTimer (FTM)
FAULTF1
0
0
1
FAULTF0
0
0
0
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