Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
20707 Discussions

MSEL pins - can I pull-up?

Altera_Forum
Honored Contributor II
‎03-21-2007 02:41 PM
1,219 Views

Can I pull up the MSEL pins with an external 10K resistor on my Stratix II FPGA?

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Altera_Forum
Honored Contributor II
‎03-21-2007 08:39 PM
388 Views

Hi Bee Gee 

The MSEL pins are internal pulled down via ~5k Ohms. Pulling an MSEL pin high externally (to VCCPD = .3V) via 10K will present an indeterminate value of 1.1V to the MSEL pin. This could prevent the device from configuring. Hence you should pull MSEL high directly to VCCPD (3.3V) or via a zero ohm resistor.
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Altera_Forum
Honored Contributor II
‎06-29-2007 03:33 PM
388 Views

Hi, 

 

Is it possible to pull MSEL0 down, so i can switch with a DIP switch between AS or PS mode? 

I`m using a CycloneII.
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Altera_Forum
Honored Contributor II
‎07-01-2007 08:57 PM
388 Views

oeps whent wrong

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