Rev. 1.00
4
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Rev. 1.00
5
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HT66FM5440
Brushless DC Motor A/D Flash MCU
HT66FM5440
Brushless DC Motor A/D Flash MCU
UART Stat�s and Control Registers.................................................................................... 150
Ba�d Rate Generator .......................................................................................................... 156
UART Set�p and Control..................................................................................................... 156
UART Transmitter................................................................................................................ 15�
UART Receiver ................................................................................................................... 159
Managing Receiver Errors .................................................................................................. 160
UART Interr�pt Str�ct�re..................................................................................................... 161
UART Power Down and Wake-�p ....................................................................................... 16�
LVD Register ....................................................................................................................... 163
LVD Operation ..................................................................................................................... 164
Multiplication Division Unit – MDU ............................................................ 165
MDU Registers .................................................................................................................... 166
MDU Operation ................................................................................................................... 16�
Interrupt Priority Configuration
............................................................................................ 1��
Interr�pt Preempt F�nction ................................................................................................. 1�0
Interr�pt Operation .............................................................................................................. 1�1
Hall Sensor Interr�pts ......................................................................................................... 1�4
External Interr�pt 1 .............................................................................................................. 1�4
Noise Filter Inp�t Interr�pt ................................................................................................... 1�5
Comparator Interr�pt ........................................................................................................... 1�5
CAPTM Interr�pts ............................................................................................................... 1�5
M�lti-f�nction Interr�pts ....................................................................................................... 1�6
PWM Mod�le Interr�pts ...................................................................................................... 1�6
A/D Converter Interr�pts ..................................................................................................... 1��
TM Interr�pts ....................................................................................................................... 1��
UART Interr�pt .................................................................................................................... 1��
I
Time Base Interr�pt ............................................................................................................. 1��
LVD Interr�pt ....................................................................................................................... 1�9
Interr�pt Wake-�p F�nction ................................................................................................. 190
Programming Considerations .............................................................................................. 190
Introd�ction ......................................................................................................................... 191
F�nctional Description ......................................................................................................... 191
Hardware Block Diagram .................................................................................................... 19�
Hardware Circ�it ................................................................................................................. 193