Visible to Intel only — GUID: qvb1683333215823
Ixiasoft
Visible to Intel only — GUID: qvb1683333215823
Ixiasoft
3.12.2. FGT PMA Settings
RX invert P and N: To swap RX P and N serial lanes.
set_instance_assignment -name HSSI_PARAMETER "rx_invert_p_and_n=<parameter_value>" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Example:
set_instance_assignment -name HSSI_PARAMETER "rx_invert_p_and_n=ENABLE" -to rx_serial_data[0] -entity top
RX on-chip termination:
set_instance_assignment -name HSSI_PARAMETER "rx_onchip_termination=<parameter_value>" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Example:
set_instance_assignment -name HSSI_PARAMETER "rx_onchip_termination=RX_ONCHIP_TERMINATION_R_2" -to rx_serial_data[0] -entity top
- RX_ONCHIP_TERMINATION_R_1 : 85 Ohms.
- RX_ONCHIP_TERMINATION_R_2 : 100 Ohms.
RX AC coupling:
set_instance_assignment -name HSSI_PARAMETER "rx_ac_couple_enable=<parameter_value>" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Example:
set_instance_assignment -name HSSI_PARAMETER "rx_ac_couple_enable=ENABLE" -to rx_serial_data[0] -entity top
-
ENABLE : when you use on board AC coupling capacitors.
-
DISABLE : when you do not use on board AC coupling capacitors.
TX invert P and N: To swap TX P and N serial lanes.
set_instance_assignment -name HSSI_PARAMETER "tx_invert_p_and_n=<parameter_value>" -to <TX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Example:
set_instance_assignment -name HSSI_PARAMETER "tx_invert_p_and_n=ENABLE" -to tx_serial_data[0] -entity top
TX Equalization:
set_instance_assignment -name HSSI_PARAMETER "txeq=<parameter_value>" -to <TX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
- main_tap: 0-55
- pre_tap_1: 0-15
- pre_tap_2: 0-7
- post_tap: 0-19
Examples:
set_instance_assignment -name HSSI_PARAMETER "txeq_main_tap=35" -to tx_serial_data[0] -entity top
set_instance_assignment -name HSSI_PARAMETER "txeq_pre_tap_1=5" -to tx_serial_data[0] -entity top
set_instance_assignment -name HSSI_PARAMETER "txeq_pre_tap_2=0" -to tx_serial_data[0] -entity top
set_instance_assignment -name HSSI_PARAMETER "txeq_post_tap_1=0" -to tx_serial_data[0] -entity top
TX PLL Bandwidth:
set_instance_assignment -name HSSI_PARAMETER "tx_pll_bw_sel=<parameter_value>" -to <inst_path>
- tx_pll_bw_sel_low
- tx_pll_bw_sel_medium
- tx_pll_bw_sel_high
- In the Quartus® Prime Pro Edition software, click Support-Logic Generation.
- Find the instance path using either one of the following two methods:
- In the Quartus® Prime Pro Edition software, open Compilation Report -> Logic Generation Tool -> IP Parameter Settings Report and search for tx_pll_bw_sel. The value of -- BB_F_UX_TX is the instance path.
- Open the <project_name>_tlg.rpt file in the output_files folder and search for -- BB_F_UX_TX.
Example:
set_instance_assignment -name HSSI_PARAMETER "tx_pll_bw_sel=tx_pll_bw_sel_medium" -to dphy|directphy_f_0|dphy_hip_inst|persystem[0].perxcvr[0].fgt.tx_ux.x_bb_f_ux_tx
Manual Tunning:
Bypass RX Auto Adaptation
set_instance_assignment -name HSSI_PARAMETER "flux_mode=FLUX_MODE_BYPASS" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
set_instance_assignment -name HSSI_PARAMETER "flux_mode=FLUX_MODE_BYPASS" -to <TX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
set_instance_assignment -name HSSI_PARAMETER "engineered_link_mode=ENABLE" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
set_instance_assignment -name HSSI_PARAMETER "engineered_link_mode=ENABLE" -to <TX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
set_instance_assignment -name HSSI_PARAMETER "rx_adapt_mode=RX_ADAPT_MODE_STATIC_EQ" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
RX Manual Equalization
- VGA:
set_instance_assignment -name HSSI_PARAMETER "rxeq_vga_gain=<parameter_value>" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Valid parameter values are 0-63.
- High-frequency boost:
set_instance_assignment -name HSSI_PARAMETER "rxeq_hf_boost =<parameter_value>" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Valid parameter values are 0-63.
- DFE Tap 1:
set_instance_assignment -name HSSI_PARAMETER "rxeq_dfe_data_tap_1=<parameter_value>" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
Valid parameter values are 0-63.
- Data Rate >= 23 Gbps and Insertion Loss <= 10 dB:
set_instance_assignment -name HSSI_PARAMETER "vsr_mode=VSR_MODE_LOW_LOSS" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
- Others:
set_instance_assignment -name HSSI_PARAMETER "vsr_mode=VSR_MODE_DISABLE" -to <RX_SERIAL_PIN> -entity <TOP_LEVEL_NAME>
VSR Mode for PAM4, contact Altera customer support.