Hello.
In my USB-to-UART chip, CP2102, it is said that:
"
the reset pin, an I/O Device Reset pin, is an Open-drain output of internal POR or VDD monitor.
An external source can initiate a system reset by driving this pin low for at least 15 μs.
"
Could you explain please what does it mean an open drain output?
I connected this pin to the RST pin of my MCU (both pins are connected to a RST switch with pull-up resistor), and I noticed that every power-up, the CP2102 RST pin causes a HW reset to the MCU RST pin, and I was told that it got something to do with the "open drain output" issue.
Thank you for any help.
In my USB-to-UART chip, CP2102, it is said that:
"
the reset pin, an I/O Device Reset pin, is an Open-drain output of internal POR or VDD monitor.
An external source can initiate a system reset by driving this pin low for at least 15 μs.
"
Could you explain please what does it mean an open drain output?
I connected this pin to the RST pin of my MCU (both pins are connected to a RST switch with pull-up resistor), and I noticed that every power-up, the CP2102 RST pin causes a HW reset to the MCU RST pin, and I was told that it got something to do with the "open drain output" issue.
Thank you for any help.
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