- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
I need to get four RGMII interfaces on HSMC attachment board and I have found that only 3 clock inputs are on the same bank as data lines. RGMII is only 125MHz so there is possibility that it could work on non-clock pin.. I have therefore two options: 1, Route clock on non-clock pins 2, Route clock on different bank but on clock input pin. Which has better chance to success? Thank you.- Tags:
- Clock
Link Copied
2 Replies
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I would recommend using option# 2 which would have higher chance to pass Fitter compilation. You can create a simple test design and let it run through Quartus II compilation to see if there is any error or critical warning to further verify the implementation.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Yeap... option# 2 would sound more reasonable...
dedicated clock pin would mean you would have better access to the clock lines in the HSSI.
Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page