Fixed Frequency Clock; Ftm Interrupts; Ftm Fault Detection Inputs - NXP Semiconductors freescale KV4 Series Reference Manual

Chip-specific FTM information
• FTM_CLKIN0 can provide an external input clock to all or either of FTM0,FTM1
and FTM3
• FTM_CLKIN1 can provide an external input clock to all or either of FTM0,FTM1
and FTM3
• FTM_CLKIN2 can provide an external input clock to all or either of FTM0,FTM1
and FTM3

39.1.3 Fixed frequency clock

The fixed frequency clock for each FTM is MCGFFCLK.

39.1.4 FTM Interrupts

The FlexTimer has multiple sources of interrupt. However, these sources are OR'd
together to generate a single interrupt request to the interrupt controller. When an FTM
interrupt occurs, read the FTM status registers (FMS, SC, and STATUS) to determine the
exact interrupt source.

39.1.5 FTM Fault Detection Inputs

The following fault detection input options for the FTM modules are selected via the
SIM_SOPT4 register. The external pin option is selected by default.
• FTM0 FAULT0 = FTM0_FLT0 pin or CMP0 output via SIM Option register control
• FTM0 FAULT1 = FTM0_FLT1 pin or CMP1 output via SIM Option register control
• FTM0 FAULT2 = FTM0_FLT2 pin or CMP2 output via SIM Option regsiter control
• FTM0_FAULT3 = XBARA_OUT49 or FTM0_FLT3 pin selected by bit in
SIM_SOPT4 register
• FTM1 FAULT0 = FTM1_FLT0 pin or CMP0 output via SIM option register control
• FTM1FAULT1 = XBAR_OUT50
• FTM3FAULT0 = FTM3_FLT0 pin or CMP0 output via SIM Option register control
• FTM3FAULT1 = reserved
• FTM3FAULT2 = reserved
• FTM3FAULT3 = XBARA_OUT52
890
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
Freescale Semiconductor, Inc.