HT66F30 datasheet(79/244 Pages) HOLTEK

79 / 244 page

HT68F20/HT68F30/HT68F40/HT68F50/HT68F60

HT68FU30/HT68FU40/HT68FU50/HT68FU60

Rev. 1.60

October 24, 2011

Timer Modules

- TM

One of the most fundamental functions in any

microcontroller device is the ability to control and mea-

sure time. To implement time related functions each de-

vice includes several Timer Modules, abbreviated to the

name TM. The TMs are multi-purpose timing units and

serve to provide operations such as Timer/Counter, In-

put Capture, Compare Match Output and Single Pulse

Output as well as being the functional unit for the gener-

ation of PWM signals. Each of the TMs has either two or

three individual interrupts. The addition of input and out-

put pins for each TM ensures that users are provided

with timing units with a wide and flexible range of fea-

tures.

The common features of the different TM types are de-

scribed here with more detailed information provided in

the individual Compact, Standard and Enhanced TM

sections.

Introduction

The devices contain from two to four TMs depending

upon which device is selected with each TM having a

reference name of TM0, TM1, TM2 and TM3. Each indi-

vidual TM can be categorised as a certain type, namely

Compact Type TM, Standard Type TM or Enhanced

Type TM. Although similar in nature, the different TM

types vary in their feature complexity. The common fea-

tures to all of the Compact, Standard and Enhanced

TMs will be described in this section, the detailed opera-

tion regarding each of the TM types will be described in

separate sections. The main features and differences

between the three types of TMs are summarised in the

accompanying table.

Function

CTM

STM

ETM

Timer/Counter

ÖÖÖ

I/P Capture

¾Ö

Compare Match Output

ÖÖÖ

PWM Channels

Single Pulse Output

PWM Alignment

Edge

Edge & Centre

PWM Adjustment Period & Duty

Duty or Period

TM Function Summary

Each device in the series contains a specific number of either Compact Type, Standard Type and Enhanced Type TM

units which are shown in the table together with their individual reference name, TM0~TM3.

Device

TM0

TM1

TM2

TM3

HT68F20

10-bit CTM

10-bit STM

¾¾

HT68F30

10-bit CTM

10-bit ETM

¾¾

HT68F40

10-bit CTM

10-bit ETM

16-bit STM

HT68F50

10-bit CTM

10-bit ETM

16-bit STM

10-bit CTM

HT68F60

10-bit CTM

10-bit ETM

16-bit STM

10-bit CTM

TM Name/Type Reference

HT66F30 Datasheet(PDF) 79 Page - Holtek Semiconductor Inc

HT66F30 Datasheet(HTML) 79 Page - Holtek Semiconductor Inc

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