All I/O pins in GPIO bank have an option to enable weak pull-up when using 1.0 V, 1.05 V, 1.1 V, 1.2 V, and 1.3 V LVCMOS I/O standards. Table 22.HSIO Internal Weak Pull-Up ResistorFor specification status, see theData Sheet Statustable ...
Internal Weak Pull-Up and Weak Pull-Down ResistorAll I/O pins, except configuration, test, and JTAG pins, have an option to enable weak pull-up. The weak pull-down feature is only available for the pins as described in the Internal Weak Pull-Down Resistor Values for Intel® Cyclone®...
assignments - settings - fitter settings - more fitter setting, there is item weak pull-up resistor I set it on and off, i found it does work. But In: assignments - assignment editor. I set value(ON) and enabled(YES) for weak pull -up resistor, i found it does not work. ...
It's in the Datasheet Table 9 "Static Characteristics" Ipu Pull-up current. It is specified between 10µA and 85µA. It probably looks more like a constant current source, but as a resistor it somewhere between 39kΩ and 330kΩ. Taking the worst case (85µA) and the maximum ...
Stong pull up directly connects the pin to VDDD. The week pull up connects through a resistor as shown below. The pull-up pull-down resistor values are, Regarding the AXRES, it will be strongly pull-up during the reset and programming. ...
the weak pull-up mechanism is hardwired in fpga silicon only. An external pull-down resistor is a simple and reliable method to achieve the required behaviour. The weak pull-up resistor range is given in device manual (10 k minimum for most devices), it's easy to calc...
If there is no nominal value, calculate the resistance value of the weak internal pull-down using the following concept, Is this correct? ・There is a description "A 2.2-kΩ resistor should be used for pulldown or pullup to change the default strap option" ...
The present invention encompasses a bus hold and weak pull-up circuit. A resistor having a first node and a second node is coupled to a bi-directional I/O pin at the first node. The weak pull-up circuit is directly coupled to the resistor at the first node. The bus hold circuit is ...
This looks good, Pin is able to take up about 6mA. Afterwards i tryed with switching the same resistor (500E) to ground and observed, that driver puts out a very short pulse up to 3.3V and drops downto 0.5V. see attached picture. Up 0 True Down Hannes Petermaier 11 年多前 in...
High impedance in the power circuit is presented to slowing varying flux changes between power pulses by the resistor capacitor combination. In the second stage, alternating power pulses in winding 10, each of which follows in quadrature a like polarity signal pulse in winding 3, fire core 1, ...