ISERDESE3 Ports - ISERDESE3 Ports - UG861

Spartan UltraScale+ FPGAs SelectIO Resources User Guide (UG861)

Document ID
UG861
Release Date
2026-04-28
Revision
1.1 English

The following table lists the ISERDESE3 ports.

Table 1. ISERDESE3 Ports
Port I/O Type Description
CLK Input Clock High-speed clock input. Clock serial input data stream.
CLK_B Input Clock Inverted version of CLK when IS_CLK_INVERTED=0 and IS_CLK_B_INVERTED=0.
CLKDIV Input Clock Low-speed divided clock input.
D Input Data Serial input data Synchronous to CLK/CLK_B.
Q[7:0] Output Data Registered outputs. Synchronous to FIFO_RD_CLK when FIFO_ENABLE is TRUE.
RST Input Reset Asynchronous reset.
FIFO_RD_CLK Input Clock FIFO read clock.
FIFO_RD_EN Input Enable Enables reading the FIFO when asserted.
FIFO_EMPTY Output   Indicates the FIFO is empty when asserted.
INTERNAL_DIVCLK Output Clock Reserved