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UM0401 Datasheet(PDF) 12 Page - STMicroelectronics

Part # UM0401
Description  User manual for eight bit port expander
PDF  17 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0401 Datasheet(HTML) 12 Page - STMicroelectronics

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Running the STMPE801 port expander GUI
UM0401
12/17
Figure 14.
GPIO Output state screen shot
2.3
Power modes
There are 2 functions that can be tested using this tab as shown in Figure 15.
●
I2C shutdown
●
Soft reset
The STMPE801 slave devices can be put in Power down mode by clicking on the "I2C
Shutdown" button. This shuts down the device and displays a message to press the reset
button to resume normal device operation.
Clicking the "Soft Reset" button performs the reset of the device. Like the other function
tabs, the correct slave device should be chosen before clicking the buttons.



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