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ML51/ML54/ML56
Sep. 01, 2020
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Series
Tec
hnical Reference
Manual
PWMnFBD
– PWM Fault Brake Data
Register
SFR Address
Reset Value
PWM0FBD
D7H, Page 1
0000_0000 b
7
6
5
4
3
2
1
0
FBF
FBINLS
FBD5
FBD4
FBD3
FBD2
FBD1
FBD0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit
Name
Description
[7]
FBF
Fault Brake Flag
This flag is set when FBINEN is set as 1 and FB pin detects an edge, which matches FBINLS
(PWM0FBD.6) selection. This bit is cleared by software. After FBF is cleared, Fault Brake data
output will not be released until PWM0RUN (PWM0CON0.7) is set.
[6]
FBINLS
PWM_BRAKE Pin Input Level Selection
0 = Falling edge.
1 = Rising edge.
[5:0]
FBDn
PWMn Fault Brake Data
0 = PWMn signal is overwritten by 0 once Fault Brake asserted.
1 = PWMn signal is overwritten by 1 once Fault Brake asserted.
Polarity Control
6.8.4.8
Each PWM output channel has its independent polarity control bit, PNP0~PNP5. The default is high
active level on all control fields implemented with positive logic. It means the power switch is ON when
PWM outputs high level and OFF when low level. User can easily configure all setting with positive
logic and then set PWMnNP bit to make PWM actually outputs according to the negative logic.