How to find out how many IDDR modules I can have on a specific FPGA?

[junejames]

Hi,

I have an analog design background and am shifting to the FPGA world. For a future experiment I'll need an input of 80 differential signals (160 pins) running at 400 MHz DDR. This implies the adoption of 80 IDDR modules.

Where do I find out how many are available in a Xilinx FPGA?

[JH]

Hi,
sorry for late reply.
On 7 Series FPGA IDDR Logic is available on all HP and HR IOs, see:
https://docs.amd.com/v/u/en-US/ug471_7Series_SelectIO
--> See Chapter 2 page 105 and ILOGIC Resources
On U and U+ Zynq it's same for HP and HR IO Banks.
-->See Chapter 2 page 144ff and ISERDES
HD banks haven't this resources.
--> See chapter 3 page 339

HP Banks supports IO Standards with max 1.8V, HR IO Standards up to 3.3V

Unfortunally we haven't so much Trenz Modules with >80 differential HP and/or HR IOs:
TE0865(U+ Zynq) with 126 differential HP IOs on B2B connector
TE0745(7 Series Zynq) with 72 diff. HP and 48 diff. HR IOs on B2B connector
For modules you need also a carrier, but we haven't a carrier for all of them where all IOs are available on some breakout connector like fmc.

Motherboard
TEB0911 with 96 diff HP on different FMC connectors

br
John