Rev. 1.00
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Rev. 1.00
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HT66FM5440
Brushless DC Motor A/D Flash MCU
HT66FM5440
Brushless DC Motor A/D Flash MCU
• PWMRH Register
Bit
7
6
5
4
3
2
1
0
Name
—
—
—
—
—
—
D9
D�
R/W
—
—
—
—
—
—
R
R
POR
—
—
—
—
—
—
0
0
Bit 7~2
Unimplemented, read as "0"
Bit 1~0
D9~D8
: 10-bit PWM Counter High Byte Register bit 1 ~ bit 0
10-bit PWM Counter bit 9 ~ bit 8
Mask Function
The device includes a Motor Control Mask Function for increased control flexibility.
Polarity
PWMB
IR2101×3
Gate Driver
MAT
MAB
MBT
MBB
MCT
MCB
PWMO
Hall Sensor
Decoder
12×6
HAT/
HAB/
HBT/
HBB/
HCT/
HCB
Mask
GAT
GAB
GBT
GBB
GCT
GCB
MCF
PLC
Dead
Time
Insert
Staggered
Circuit
AT2
AB2
BT2
BB2
CT2
CB2
AT0
AB0
BT0
BB0
CT0
CB0
AT1
AB1
BT1
BB1
CT1
CB1
MCD
PWMMD
PWMME
MCD
PROTECTOC
BRKE
PROTECT
Mask Function Block Diagram
Motor
U
V
W
Power MOS
Moto HV
MAT
MBT
MCT
MAB
MBB
MCB
Mask Switching
The internal mask circuit has three operation modes, which are known as the Normal Mode, Brake
Mode and Motor Protect Mode. The Normal Mode has two sub-modes, Hardware Mask Mode and
Software Mask Mode.