Forum Discussion
AN 754: MIPI D-PHY Solution with Cyclone V - questions on VCCIO/VCCDP/VREF connection
- 1 year ago
Hi Aqid,
The AN754 refers to the Cyclone® IV, Cyclone V, Intel® Cyclone 10 LP, Intel MAX® 10.
But sorry for the typo, I am referring specicially to the Cyclone V.
Thanks for the approval, so it should be okay to connect with the requirement in 1/2/3:
1) VCCIO=2.5V
2) VCCPD=2.5V
3) VREF=0.6V
Regarding the VTT, I will follow the AN754 at Figure 1 (FPGA Unidirectional Receiver Implementation Block Diagram) or at Figure 3 (FPGA As Receiver HS-RX and LP-RX Modes IBIS Simulation Circuit) that is not using VTT at all.
THANKS A LOT FOR THE SUPPORT - I appreaciate a lot!!!
Regards,
David R.
Hello David,
Referring to Cyclone IV datasheet for HSTL-12 I/O standard, I afraid some of the requirements are not meeting the specification.
HSTL-12 need a typical 1.2V VCCIO and need VTT. Refer here:
Regards,
Aqid