Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
20688 Discussions

MAX TMS and TDI

Altera_Forum
Honored Contributor II
‎08-01-2016 06:53 AM
941 Views

Hi, 

Per "MAX 10 Schematic Review Worksheet 1.0" page 19, TMS and TDI should be puled-up to 2.5V for 3.3V JAG operation. Is it a typo? Can I pull them to 3.3V instead? 

 

Thanks, 

 

Noam
0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎08-01-2016 05:28 PM
287 Views

I've not used the MAX10, but the same recommendation (2.5V pullup) exists for the Cyclone series. I think you can pull up to 3.3V, but watch out for overshoot which can destroy devices. I've seen some diode clamp recommendations to avoid this. Pulling up to 2.5V minimizes the potential for overshoot.

0 Kudos
Copy link
Reply

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.