Rev. 1.00
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HT66FM5440
Brushless DC Motor A/D Flash MCU
HT66FM5440
Brushless DC Motor A/D Flash MCU
Bit 5
CAPEN
: CAPTM capture input control
0: Disable
1: Enable
Bit 4
CAPNFT
: CAPTM Noise Filter sample times definition
0: Twice
1: 4 times
The CAPTM Noise Filter circuit requires sampling the signal twice or 4 times
continuously, when the sampled signals are all the same, the signal will be
acknowledged. The sample clock is decided by the CAPNFS bit.
Bit 3
CAPNFS
: CAPTM Noise Filter clock source selection
0:
t
SYS
1: 4×
t
SYS
The clock source for the Capture Timer Module Counter is provided by f
SYS
or f
SYS
/4.
Bit 2
CAPFIL
: CAPTM capture input noise filter control
0: Disable
1: Enable
Bit 1
CAPCLR
: CAPTM Counter capture auto-reset control
0: Disable
1: Enable
If this bit is set high, when FHA/FHB/FHC/CTIN generates the required capture edge,
the hardware will automatically transfer the value in the CAPTMDL and CAPTMDH
register to the capture register pair CAPTMCL and CAPTMCH, and then reset the
CAPTM counter.
Bit 0
CAMCLR
: CAPTM Counter compare match auto-reset control
0: Disable
1: Enable
If this bit is set high, when a compare match condition has occurred, the hardware will
automatically reset the CAPTM counter.
CAPTMDL Register
Bit
7
6
5
4
3
2
1
0
Name
D�
D6
D5
D4
D3
D�
D1
D0
R/W
R
R
R
R
R
R
R
R
POR
0
0
0
0
0
0
0
0
Bit 7~0
D7~D0
: CAPTM Counter Low Byte Register bit 7 ~ bit 0
CAPTM 16-bit Counter bit 7 ~ bit 0
CAPTMDH Register
Bit
7
6
5
4
3
2
1
0
Name
D15
D14
D13
D1�
D11
D10
D9
D�
R/W
R
R
R
R
R
R
R
R
POR
0
0
0
0
0
0
0
0
Bit 7~0
D15~D8
: CAPTM Counter High Byte Register bit 7 ~ bit 0
CAPTM 16-bit Counter bit 15 ~ bit 8
CAPTMAL Register
Bit
7
6
5
4
3
2
1
0
Name
D�
D6
D5
D4
D3
D�
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7~0
D7~D0
: CAPTM Compare Low Byte Register bit 7 ~ bit 0
CAPTM 16-bit Comare Register bit 7 ~ bit 0