PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide

ID 683716
Date 4/01/2024
Public
Document Table of Contents

3.3.2.2. Output Path Signals

Table 50.  Output Path SignalsOutput path signals are signals that are available when you set Pin Type to either Output or Bidirectional. The <n> in the signal names in the following table represents the group number in the IP
Signal Name Direction Width Description
group_<n>_data_from_core Input

Quarter rate-DDR: 8 x PIN_WIDTH

Half rate-DDR: 4 x PIN_WIDTH

Full rate-DDR: 2 x PIN_WIDTH

Quarter-rateSDR: 4 x PIN_WIDTH

Half rate-SDR: 2 x PIN_WIDTH

Full rate-SDR: 1 x PIN_WIDTH

Data signal from the Intel FPGA core. Synchronous to the core_clk_out output from the IP.
group_oe_from_core Input

Quarter-rate: 4

Half-rate: 2

Full-rate: 1

Output enable signal from the FPGA core. Synchronous to the core_clk_out output from the IP.

Each group has a separate output enable.

group_strobe_out_en Input

Quarter-rate: 4

Half-rate: 2

Full-rate: 1

Strobe output enable from FPGA core. Synchronous to the core_clk_out output from the IP.

Each group has separate strobe enable.

group_strobe_from_core Input

Quarter-rate:8

Half-rate:4

Full-rate:2

Strobe pattern from core. Simple strobe pattern can be generated by this signal with 8’h55 values.

group_<n>_data_out

/group_<n>_data_io

Output/ Bidirectional 1 to 22

Data output from the IP. Synchronous to the group_<n>_strobe_out or group_<n>_strobe_io output from the IP.

If Pin Type is set to Output, the group_<n>_data_out signals are used. If Pin Type is set to Bidirectional, the group_<n>_data_io signals are used.

group_<n>_data_out_n

/group_<n>_data_io_n

Output/ Bidirectional 1 to 22

Differential data output from IP. Synchronous to the group_<n>_strobe_out_n or group_<n>_strobe_io_n output from the IP.

group_<n>_strobe_out/ group_strobe_io/ group_<n>_strobe_io Output/ Bidirectional 1 Positive output strobe from the IP. If the Pin Type is set to Output, the group_<n>_strobe_out signal is used. If the Pin Type is set to Bidirectional, the group_<n>_strobe_io signal is used.
group_<n>_strobe_out_n / group_<n>_strobe_io_n Output/ Bidirectional 1

Negative output strobe from the IP.

This is used if Strobe Configuration is set to Differential.

If the Pin Type is set to Output, the group_<n>_strobe_out_n signal is used. If the Pin Type is set to Bidirectional, the group_<n>_strobe_io_n signal is used.