Visible to Intel only — GUID: ixh1489160474770
Ixiasoft
Visible to Intel only — GUID: ixh1489160474770
Ixiasoft
5.8.2.5. Differential SSTL I/O Standard in Intel® Cyclone® 10 LP Devices
Intel® Cyclone® 10 LP devices support Differential SSTL-2 and Differential SSTL-18 I/O standards. The Differential SSTL output standard is only supported at the PLL#_CLKOUT pins using two single-ended SSTL output buffers (PLL#_CLKOUTp and PLL#_CLKOUTn), with the second output programmed to have opposite polarity.
The Differential SSTL input standard is supported on the GCLK pins only, treating differential inputs as two single-ended SSTL and only decoding one of them.
The Differential SSTL I/O standard requires two differential inputs with an external reference voltage (VREF) and an external termination voltage (VTT) of 0.5 × VCCIO to which termination resistors are connected.