Hello!
We are looking forward to integrate the UPD720201K8-711-BAC-A with a Compute Module 4 (CM4) from the Raspberry Foundation. The CM4 has a single PCI-E 2.0 1x lane with the following limitations:
- No support for MSI-X
- No support for 64-bit PCI-E bus access
Do these limitations pose a problem for the UPD720201K8? In other words, can the UPD720201K8 work correctly with only 32-bit bus access and without MSI-X?
Thank you
Hi,
Even if it works with 32-bit bus, you need to have firmware for its Flash (MX25L5121EMC-20G is used in Renesas' recommended design) which is required on each boot. Unfortunaltely, the firmware for the flash is not available.
Hi Electronicsnerd, where can you find recommended design? Thank you so much.
Hi juanmacc, search for "uPD720201 or uPD720202" on Renesas website. Under 'Download' section, you could find 'ET-D720201-0014 design kit'.