Basic Function Timer (Bftm); Introduction; Features; Figure 59. Bftm Block Diagram - Holtek HT32F52220 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52220/HT32F52230
14

Basic Function Timer (BFTM)

Introduction

The Basic Function Timer Module, BFTM, is a 32-bit up-counting counter designed to measure
time intervals, generate one shot pulses or generate repetitive interrupts. The BFTM can operate
in two modes which are repetitive and one shot modes. The repetitive mode restarts the counter at
each compare match event which is generated by the internal comparator. The BFTM also supports
a one shot mode which will force the counter to stop counting when a compare match event occurs.
BFTM
APB
clock

Figure 59. BFTM Block Diagram

Features

▄
32-bit up-counting counter
▄
Compare Match function
▄
Includes debug mode
▄
Clock source: BFTM APB clock
▄
Counter value can be R/W on the fly
▄
One shot mode: counter stops counting when compare match occurs
▄
Repetitive mode: counter restarts when compare match occurs
▄
Compare Match interrupt enable/disable control
Rev. 1.10
Counter
Controller
EN CLR
32-bit Up Counter
BFTMCNTR
236 of 366
OSM
MIF
Comparator
MIEN
BFTMCMPR
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November 09, 2018