HT32F2755 Просмотр технического описания (PDF) - Holtek Semiconductor

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HT32F2755

Holtek 32-bit Microcontroller with ARM Cortex™-M3 Core

Holtek Semiconductor 

32-bit ARM Cortex™-M3 MCU

HT32F1755/HT32F1765/HT32F2755

Motor Control Timer – MCTM

▀ Single 16-bit up, down, up/down auto-reload counter

▀ 16-bit programmable prescaler allowing dividing the counter clock frequency by any factor

between 1 and 65536

▀ Input Capture function

▀ Compare Match Output

▀ PWM waveform generation with Edge and Centre-aligned Modes

▀ Single Pulse Mode Output

▀ Complementary Outputs with programmable dead-time insertion

▀ Encoder interface controller with two inputs using quadrature decoder

▀ Support 3-phase motor control and hall sensor interface

▀ Brake input to force the timer’s output signals into a reset or fixed condition

The Motor Control Timer consists of a single 16-bit up/down counter, four 16-bit CCRs

(Capture/Compare Registers), single one 16-bit counter-reload register (CRR), single 8-bit

repetition counter and several control/status registers. It can be used for a variety of purposes

including measuring the pulse widths of input signals or generating output waveforms such as

compare match outputs, PWM outputs or complementary PWM outputs with dead-time insertion.

The MCTM supports an Encoder interface controller to an incremental encoder with two inputs.

The MCTM is capable of offering full functional support for motor control, hall sensor interfacing

and brake input.

Basic Function Timer – BFTM

▀ Two 32-bit compare/match count-up counters – no I/O control features

▀ One shot mode – counting stops after a match condition

▀ Repetitive mode – restart counter after a match condition

The Basic Function Timer is a simple count-up 32-bit counter designed to measure time intervals

and generate a one shot or repetitive interrupts. The BFTM operates in two functional modes,

repetitive or one shot mode. In the repetitive mode the BFTM restarts the counter when a compare

match event occurs. The BFTM also supports a one shot mode which forces the counter to stop

counting when a compare match event occurs.

Rev. 1.00

11 of 45

August 13, 2012

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