Rev. 1.00
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Rev. 1.00
3
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HT66FM5440
Brushless DC Motor A/D Flash MCU
HT66FM5440
Brushless DC Motor A/D Flash MCU
Acc�m�lator – ACC ............................................................................................................... �9
Program Co�nter Low Register – PCL .................................................................................. 30
Look-�p Table Registers – TBLP� TBHP� TBLH ..................................................................... 30
Stat�s Register – STATUS .................................................................................................... 30
................................................................................................ 3�
Operating Modes and System Clocks ......................................................... 33
System Clocks ...................................................................................................................... 33
System Operation Modes ...................................................................................................... 34
Control Registers .................................................................................................................. 35
Operating Mode Switching .................................................................................................... 3�
Standby C�rrent Considerations ........................................................................................... 3�
Wake-�p ................................................................................................................................ 39
Watchdog Timer Clock So�rce .............................................................................................. 40
Watchdog Timer Control Register ......................................................................................... 40
Watchdog Timer Operation ................................................................................................... 41
Reset F�nctions .................................................................................................................... 4�
Reset Initial Conditions ......................................................................................................... 44
P�ll-high Resistors ................................................................................................................ 5�
Port A Wake-�p ..................................................................................................................... 5�
I/O Port Control Registers ..................................................................................................... 53
Pin-shared F�nctions ............................................................................................................ 53
I/O Pin Str�ct�res .................................................................................................................. 60
Programming Considerations ................................................................................................ 60
Introd�ction ........................................................................................................................... 61
TM Operation ........................................................................................................................ 61
TM Clock So�rce ................................................................................................................... 61
TM Interr�pts ......................................................................................................................... 6�
TM External Pins ................................................................................................................... 6�
TM Inp�t/O�tp�t Pin Selection .............................................................................................. 6�
Programming Considerations ................................................................................................ 63
Periodic TM Operation ......................................................................................................... 65
Periodic Type TM Register Description ................................................................................ 66
Periodic Type TM Operating Modes ..................................................................................... ��