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Altera_Forum
Honored Contributor
Honored ContributorSPI under cyclone IV , number of LVDS recieves ?
Is SPI supported natively under CYCLONE IV or do I have to bit-bang in order to get it to work with SPI peripherals.
Also how many LVDS receives does the CYCLONE IV have on the EP4CE6 TQFP ? I need 16 LVDS recieves @ 480 Mbps for a CMOS area scan sensor data and spi to control it.2 Replies
Altera_ForumFor the number of LVDS channels supported, you can refer to the device overview chapter of CIV device handbook.
- Altera_Forum
Chapter 9 of the embedded peripherals ip user guide (https://www.altera.com/literature/ug/ug_embedded_ip.pdf) covers Altera's SPI peripheral. This will work in Cyclone IV. That should allow you to do something a little better than bit-banging.
As for LVDS - have a look through the cyclone iv device datasheet (https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/cyclone-iv/cyiv-53001.pdf). 480Mbps is quite punchy - is that DDR? Look at table 1-36 on page 1-32. This covers the LVDS data rates you can expect to achieve with Cyclone IV. Cheers, Alex
