Modes Of Operation; Block Diagram - NXP Semiconductors freescale KV4 Series Reference Manual

Table of Contents

Introduction

• Dual edge capture for pulse and period width measurement

• Quadrature decoder with input filters, relative position counting, and interrupt on

position count or capture of position count on external event

39.2.3 Modes of operation

When the MCU is in an active BDM mode, the FTM temporarily suspends all counting

until the MCU returns to normal user operating mode. During Stop mode, all FTM input

clocks are stopped, so the FTM is effectively disabled until clocks resume. During Wait

mode, the FTM continues to operate normally. If the FTM does not need to produce a

real time reference or provide the interrupt sources needed to wake the MCU from Wait

mode, the power can then be saved by disabling FTM functions before entering Wait

The FTM uses one input/output (I/O) pin per channel, CHn (FTM channel (n)) where n is

the channel number (0–7).

The following figure shows the FTM structure. The central component of the FTM is the

16-bit counter with programmable initial and final values and its counting can be up or

The number of channels supported can vary for each instance of

the FTM module on a chip. See the chip-specific FTM

information to see how many channels are supported for each

module instance. For example, if a module instance supports

only six channels, references to channel numbers 6 and 7 do not

apply for that instance.

KV4x Reference Manual, Rev. 2, 02/2015

Freescale Semiconductor, Inc.