The two primary types of I/O in Versal ACAPs are high-performance XP I/O (XPIO) and high density HD I/O (HDIO). The XPIO includes dedicated logic to support high-speed interfaces with voltage ranges between 1.0V and 1.5V. HDIO and XPIO banks do not have overlapping voltages or I/O standards. The HDIO supports interfaces with voltages ranging from 1.8V to 3.3V. The HDIO provides logic for both single data rate (SDR) and double data rate (DDR) interfaces at reduced clocking speeds. See Versal ACAP SelectIO Resources Architecture Manual (AM010) for architecture information and Advanced I/O Wizard LogiCORE IP Product Guide (PG320) for detailed information on Advanced IO Wizard / Advanced IO Planner.
- Single-ended I/O standards are, for example, LVCMOS, LVTTL, HSTL, SSTL, HSUL, LVSTL, and POD.
- Pseudo-differential standards are, for example, differential HSTL, POD, HSUL, LVSTL, and SSTL.
- LVDS compatible.