XC4VLX25-10FF668C - Supported Differential IO Standards
The following table lists the differential I/O standards supported by the XC4VLX25-10FF668C device.
Table 1. Supported differential I/O standards.| I/O Standard | Description |
|---|---|
BLVDS_25 | Bus Low-Voltage Differential Signaling (2.5V) |
DIFF_HSTL_II | Differential High-Speed Transceiver Logic (1.5V) Class II |
DIFF_HSTL_II_18 | Differential High-Speed Transceiver Logic (1.8V) Class II |
DIFF_SSTL18_II | Differential Stub Series Terminated Logic (1.8V) Class II |
DIFF_SSTL2_II | Differential Stub Series Terminated Logic (2.5V) Class II |
LDT_25 | Lightning Data Transport (2.5V) - also referred to as Hypertransport™ |
LVDS_25 | Low-Voltage Differential Signaling (2.5V) |
LVDSEXT_25 | Extended Low-Voltage Differential Signaling (2.5V) |
LVPECL_25 | Low-Voltage Positive Emitter-Coupled Logic (2.5V) |
RSDS_25 | Reduced Swing Differential Signaling (2.5V) |
ULVDS_25 | Ultra Low-Voltage Differential Signaling with Differential Termination (2.5V) |
For more information, refer to the Virtex-4 FPGA User Guide (ug070.pdf), available at www.xilinx.com.