Rev. 1.00
130
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Rev. 1.00
131
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HT66FM5440
Brushless DC Motor A/D Flash MCU
HT66FM5440
Brushless DC Motor A/D Flash MCU
Hall Sensor Decoder Register Description
The HDCR register is the Hall Sensor Decoder control register, HDCD is the Hall Sensor Decoder
input data register, and HDCT0~HDCT11 are the Hall Sensor Decoder tables. The HCHK_NUM
register is the Hall Noise Filter check number register and HNF_MSEL is the Hall Noise Filter
Mode select register. The INTEG0 register is Hall Noise Filter input source selection and output
interrupt edge control register.
• INTEG0 Register
Bit
7
6
5
4
3
2
1
0
Name
—
HSEL
INTCS1
INTCS0
INTBS1
INTBS0
INTAS1
INTAS0
R/W
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
—
0
0
0
0
0
0
0
Bit 7
Unimplemented, read as "0"
Bit 6
HSEL
: HA/HB/HC source selection
0: H1/H2/H3
1: CMP1/CMP2/CMP3 output
Bit 5~4
INTCS1~INTCS0
: FHC Interrupt edge control for INTC
00: Disable
01: Rising edge trigger
10: Falling edge trigger
11: Dual edge trigger
Bit 3~2
INTBS1~INTBS0
: FHB Interrupt edge control for INTB
00: Disable
01: Rising edge trigger
10: Falling edge trigger
11: Dual edge trigger
Bit 1~0
INTAS1~INTAS0
: FHA Interrupt edge control for INTA
00: Disable
01: Rising edge trigger
10: Falling edge trigger
11: Dual edge trigger
• HDCR Register
Bit
7
6
5
4
3
2
1
0
Name
CTM_SEL1 CTM_SEL0 HDLY_MSEL HALS
HDMS
BRKE
FRS
HDCEN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
1
0
0
0
0
Bit 7~6
CTM_SEL1~CTM_SEL0
: TM select for the Hall Delay Circuit
00: PTM0 (16-bit PTM)
01: PTM1 (16-bit PTM)
10: PTM3 (10-bit PTM)
11: Unused
Bit 5
HDLY_MSEL
: Hall Delay Circuit selection
0: Select original path
1: Select Hall Delay Circuit
Bit 4
HALS
: Hall Sensor Decoder Degree selection
0: Hall Sensor 60 degree
1: Hall Sensor 120 degree
Bit 3
HDMS
: Hall Sensor Decoder Mode selection
0: Software Mode (SHA/SHB/SHC in the HDCD register)
1: Hall Sensor Mode (FHA/FHB/FHC outputs from noise filter)