Internal Weak Pull-Up Resistor
All I/O pins, except configuration, test, and JTAG pins, have an option to enable weak pull-up. For SDM and HPS, the configuration I/O and peripheral I/O are supported with weak pull-up and weak pull-down options. The internal weak pull-down feature is only supported in selected HPS and SDM I/O. The typical value for this internal weak pull-down resistor is approximately 25 kΩ.
|Symbol||Description||Condition (V)||Nominal Value||Resistance Tolerance||Unit|
|RPU||Value of the I/O pin pull-up resistor before and during configuration, as well as user mode if you have enabled the programmable pull-up resistor option.||VCCIO = 3.0 ±5%||25||±25%||kΩ|
|VCCIO = 2.5 ±5%||25||±25%||kΩ|
|VCCIO = 1.8 ±5%||25||±25%||kΩ|
|VCCIO = 1.5 ±5%||25||±25%||kΩ|
|VCCIO = 1.35 ±5%||25||±25%||kΩ|
|VCCIO = 1.25 ±5%||25||±25%||kΩ|
|VCCIO = 1.2 ±5%||25||±25%||kΩ|
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