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Altera_Forum
Honored Contributor
Honored ContributorGPIO vs HSMC pinout
Hi all,
I am going to design high speed application. Because my cyclone V development kit (DE10- Standard) have two output options is GPIO and HSMC. I would like to know what the different between them? Could I use GPIO pinout for high speed application? Is GPIO LVDS pinout?6 Replies
Altera_ForumHi,
1. HSMC:- It is a high speed connector, which supports 9.5GHz single ended signal and 10.5GHz for differential signal.Per pin current is around 2 A and good voltage rating. reliable in terms of the mating.
- Based on the frequency of fpga for high speed IO is around 500~600MHz only so we can use with in this frequency.
- Altera_Forum
Anand,
Thank for your reply. How do I know which pin is LVDS in GPIO? - Altera_Forum
Hi John,
With Single Ended GPIO (not LVDS) don't go over 100 MHz with DE10 to avoid troubles. - Altera_Forum--- Quote Start --- Hi John, With Single Ended GPIO (not LVDS) don't go over 100 MHz with DE10 to avoid troubles. --- Quote End --- What do you mean about "Single Ended GPIO"? On the DE10 user manual, it's just mentioned about GPIO. It doesn't say any thing else.
- Altera_Forum
You have GPIO header with 2.54mm pin strip.
When you use a pin as a single pin you usually call it Single-Ended https://en.wikipedia.org/wiki/single-ended_signaling You can use a couple of (special) pins in GPIO header of DE10 as LVDS https://en.wikipedia.org/wiki/low-voltage_differential_signaling - Altera_Forum
Hi flz47655,
But on the DE10 nano doesn't mention any special pins, how could I find the special pin which has LVDS?
