Digital IO build-in pull up?

[raymond]

I am using a PCI-7041 with 6040E connectted to a BNC-2110 adapter. I need to use some lines on P0 port on the adapter to get several pin status of a MCU. I have noticed that it appears that there is a build-in pull-up on the lines of P0 port if I configure them as digital input. (Without connecting any signal, the reading of the line is Hi).

I wonder if I am right. And do I have flexibility to configure them into pull-down and how?

Thanks!

[Tom_W_[DE]]

Hi Raymond-

This KB states that the DIO lines of your E Series card are indeed pulled up through 50kOhm when configured as input.

There is no way to configure this situation in software, but you can easily add a pull-down network externally using the suggestions in this KB.

Thanks-