Information

FTMx_CONF field descriptions (continued)
Field Description
0 A global time base signal generation is disabled.
1
A global time base signal generation is enabled.
9
GTBEEN
Global Time Base Enable
Configures the FTM to use an external global time base signal that is generated by another FTM.
0 Use of an external global time base is disabled.
1
Use of an external global time base is enabled.
8
Reserved
This read-only field is reserved and always has the value zero.
7–6
BDMMODE
BDM Mode
Selects the FTM behavior in BDM mode. See BDM mode.
5
Reserved
This read-only field is reserved and always has the value zero.
4–0
NUMTOF
TOF Frequency
Selects the ratio between the number of counter overflows to the number of times the TOF bit is set.
NUMTOF = 0: The TOF bit is set for each counter overflow.
NUMTOF = 1: The TOF bit is set for the first counter overflow but not for the next overflow.
NUMTOF = 2: The TOF bit is set for the first counter overflow but not for the next 2 overflows.
NUMTOF = 3: The TOF bit is set for the first counter overflow but not for the next 3 overflows.
This pattern continues up to a maximum of 31.
Memory map and register definition
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
732 Freescale Semiconductor, Inc.