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P a g e
5.4
Outputs
Two output signals are available which may be configured for ON/OFF or PWM outputs through the Output Configuration
registers 0x0124 and 0x0126.
Note:
The Output Drive Type (Open Drain, inverting driver) is fixed.
Outputs
7
6
5
4
3
2
1
0
Output Driver
Open
Drain,
Inverting
Driver
1
1
Active State
LOW
0
HIGH
1
PWM Rate
100 Hz
0
0
10 Hz
0
1
1 Hz
1
0
0.1 Hz
1
1
15
14
13
12
11 10
9
8
Output Type
Null
0
0
0
0
ON/OFF
0
0
0
1
PWM
0
0
1
0
Reserved
x
1
x
x
1
x
x
x
5.4.1
PWM Rate
The SP-016 probe outputs support the following PWM frequencies:
PWM Rate
Name
Description
0
100 Hz PWM signal has a constant 100 Hertz frequency (10
msec repetition rate) with 0 – 100 % duty cycle
1
10 Hz PWM signal has a constant 10 Hertz frequency (100
msec repetition rate) with 0 – 100 % duty cycle
2
1 Hz
PWM signal has a constant 1 Hertz frequency (1
second repetition rate) with 0 – 100 % duty cycle
3
0.1 Hz PWM signal has constant 0.1 Hertz frequency (10
second repetition rate) with 0 – 100 % duty cycle
5.4.2
Active State
The SP-016 probe outputs may be configured as Active HIGH or Active LOW. When set to 1 (Active HIGH), the output
will be high impedance when active. When set to 0 (Active LOW), the output will be low impedance when active. The
Factory reset value is 0.
5.4.3
Output Drive
The Output Drive is permanently set to 3, indicating that the output is configured as an Open Drain driver, allowing
the DIN signal to override and read back the state of the output signal.
5.4.4
Output Type
The SP-016 probe supports NULL (0), ON/OFF (1) or PWM (2) outputs. When set to NULL the output signal will be left
in a high impedance state. When set to ON/OFF the Rate information has no effect.