Texas Instruments BoosterPack BOOSTXL-IOLINKM-8 EVM User Manual page 19

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Figure 2-7. IO-Link Port 1 M12 Connector, Test Points, and LEDs
The test points and status LEDs associated with the TCA6424A I2C-to_GPIO Expander are shown in
Reference Designator
TP8
TP9
TP10
TP11
D5
TP37, TP39
SLLU357 – MAY 2023
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Label
GPIO_SCL
GPIO_SDA
GPIO_RST
GPIO_INT
GPIO_INT
GND
Figure 2-8. GPIO Test Points and Interrupt LED
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Description
TCA6424A I2C SCL signal test point (3.3-V
signal level)
TCA6424A I2C SDA signal test point (3.3-V
signal level)
TCA6424A Reset pin test point (3.3-V signal
level)
TCA6424A Interrupt pin test point (3.3-V
signal level)
TCA6424A Interrupt pin LED Indicator
Ground test point
BOOSTXL-IOLINKM-8 EVM User's Guide
Hardware
Figure 2-8.
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