HD I/O Interface Logic

UltraScale Architecture SelectIO Resources User Guide (UG571)

Document ID
UG571
Release Date
2022-08-31
Revision
1.14 English

HD I/O pins contain an I/O interface logic (IOI) block that enables various I/O interfaces. HD I/O IOI consists of an OLOGIC and ILOGIC block dedicated for each pin.

Supported interfaces include the following:

Asynchronous (or combinatorial) input and output interfaces

System synchronous interfaces with SDR registers in the IOI and/or interconnect logic. Supported flip-flop primitives include the following.

°FDCE: flip-flip with clock enable and asynchronous clear

°FDPE: flip-flop with clock enable and asynchronous preset

°FDRE: flip-flop with clock enable and synchronous reset

°FDSE: flip-flop with clock enable and synchronous set

Source synchronous interfaces with DDR registers in the IOI and/or interconnect logic. Supported primitives include IDDRE1 and ODDRE1.