F-Tile Ethernet Multirate Intel® FPGA IP User Guide

ID 714307
Date 5/01/2024
Public
Document Table of Contents

3. Parameters

You customize the IP core by specifying parameters in the IP parameter editor.
Figure 9. F-Tile Ethernet Multirate Intel® FPGA IP Parameter Editor: IP Tab
Table 74.  Parameter Settings: IP Tab
Parameter Supported Values Default Setting Description
General Options
PMA type

FGT

FHT

FGT Selects the targeted transceiver type in the F-tile.
  • FGT supports 10G-50G per lane.
  • FHT supports 50G-100G per lane.
Reconfig group

FGT:

25GE-1 Reconfigurable

50GE-1 Reconfigurable

100GE-4 Reconfigurable

100GE-2 Reconfigurable

200GE-4 Reconfigurable

400GE-8 Reconfigurable

FHT:

100GE-1 Reconfigurable

200GE-2 Reconfigurable

400GE-4 Reconfigurable

25GE-1 Reconfigurable Selects the reconfiguration group.

The reconfiguration group indicates the base profile along with the maximum number of transceivers used within the group.

Client interface

MAC Avalon® Streaming Interface

MAC segmented

MII PCS only

PCS66 OTN

PCS66 FlexE

MAC segmented Selects data interface exposed to a client.
Include 40GE

On

Off

Off When disabled, removes the 40GE bridge logic from the F-Tile Ethernet Multirate IP core.
PMA reference frequency

156.250000

312.500000

322.265625

156.250000 Selects the reference clock frequency used by the transceiver.

When System PLL frequency is not set to Custom, the transceiver and the system clock must connect to the same reference clock or to references that are PPM locked.

System PLL frequency

805.664062

830.078125

Custom

805.664062

Selects the System PLL frequency. Each reconfiguration group defines the minimum system PLL frequency.

For reconfiguration group supporting PAM4 profile, the minimum system PLL frequency is 830 MHz.

Use Custom when you require other frequencies or if system PLL reference clock source and PMA reference clock source are different. You must define Custom System PLL Frequency parameter value.

Custom system PLL frequency 805.6640625M - 1 GHz N/A

If you choose the Custom option in the System PLL Frequency parameter, the IP core clock o_clk_pll is equivalent to half of the specified rate.

The frequency must be greater than the minimum system PLL frequency defined for each reconfiguration group.

For information about clock frequency ranges, refer to Clock Signals.

Number of secondary profiles/groups 1-32 1 Selects the number for the secondary profiles or profile groups.

Each secondary profile enables a new tab in the IP GUI. For example, setting Number of secondary profiles/groups to 4 generates four secondary profile tabs.

Enable TX Packing

On

Off

Off This parameter is available when client interface is set to MAC segmented mode with no PTP for the following reconfiguration groups:
  • FGT:
    • 200GE-4 Reconfigurable
    • 400GE-8 Reconfigurable
  • FHT:
    • 200GE-2 Reconfigurable
    • 200GE-4 Reconfigurable
    • 400GE-4 Reconfigurable

The implementation details for the packing logic can be found in the F-tile Ethernet Intel FPGA Hard IP User Guide.

Ready Latency 0-3 0 Selects the ready latency value on the TX client interface

Ready Latency is an Avalon ST interface property that defines the number of clock cycles of the delay from when the IP core asserts the o_tx_ready signal to the clock cycle in which the IP core can accept the data on the TX client interface. Refer to Avalon Interface Specifications.

Selecting a longer latency (higher number) eases timing closure at the expense of increased latency for the TX datapath in MAC+PCS variations.

This parameter is only available if Client Interface is set to MAC Avalon ST.

Enable asynchronous adapter clocks

On

Off

Off When turned on, you can drive the i_clk_rx and i_clk_tx clock signals different from o_clk_pll clock signal.

This parameter is only available if client interface is set to MAC Avalon ST.

Include 32-bit soft CWBIN counters

On

Off

Off This parameter is available when FEC mode is enabled in the IP parameter editor. This soft logic converts the 8-bit CWBin0-3 registers in Hard IP (FEC block of F-tile) to the 32-bit registers in Soft logic.
Reconfig Clock Frequency 100 to 250 MHz 100 MHz The Avalon® memory-mapped interface uses this clock to access control status registers (CSRs). The clock supports the frequency range of 100 to 250 MHz.
Enable dedicated CDR Clock Output

On

Off

off When turned on, enables the dedicated CDR clock output. When there is more than one channel number, the CDR clock output is connected to channel 0. This option is only applicable if the channel 0 is placed within FGT Quad3 or UX FGT Quad2.
Note: For more information about how to use the port, refer to Clock Connections in Synchronous Ethernet Operation in the F-Tile Ethernet Intel® FPGA Hard IP User Guide.
Enable IPXACT

On

Off

On When turned on, IPXACT/CSR register information is included in the generated IP file.
Startup Profile Options
Startup profile

1x25GE-1/10GE-1

2x25GE-1/10GE-1

4x25GE-1/10GE-1

1x40GE-4

1x50GE-1

1x50GE-2

2x50GE-1

2x50GE-2

1x100GE-1

1x100GE-2

1x100GE-4

1x200GE-2

4x100GE-2

2x200GE-4

1x400GE-4

1x400GE-8

Varies based on the selected base profile Selects the startup profile within each reconfiguration group. The available options depends on the base profile.

When you select a non-base profile as the startup profile, ensure the secondary profile is also generated and set as the startup profile in the QSF settings.

The following options are available for FGT transceivers:
  • 25GE-1 Reconfigurable:
    • 1x25GE-1/10GE-1
  • 50GE-1 Reconfigurable:
    • 1x50GE-1
    • 1x25GE-1/10GE-1
  • 100GE-4 Reconfigurable:
    • 1x100GE-4
    • 1x100GE-2
    • 2x50GE-2
    • 2x50GE-1
    • 4x25GE-1/10GE-1
    • 1x40GE-4
  • 100GE-2 Reconfigurable:
    • 1x100GE-2
    • 1x50GE-2
    • 2x50GE-1
    • 2x25GE-1/10GE-1
  • 400GE-8 Reconfigurable:
    • 1x400GE-8
    • 2x200GE-4
    • 4x100GE-2
  • 200GE-4 Reconfigurable:
    • 1x200GE-4
    • 2x100GE-2
    • 1x100GE-4
    • 4x50GE-1
    • 2x50GE-2
The following options are available for FHT transceivers:
  • 50GE-1 Reconfigurable:
    • 1x50GE-1
    • 1x25GE-1
  • 100GE-4 Reconfigurable:
    • 1x100GE-4
    • 1x100GE-2
    • 1x100GE-1
    • 2x50GE-2
    • 2x50GE-1
    • 2x50GE-1
    • 4x25GE-1
  • 100GE-2 Reconfigurable:
    • 1x100GE-2
    • 1x100GE-1
    • 1x50GE-2
    • 2x50GE-1
    • 2x25GE-1
  • 100GE-1 Reconfigurable:
    • 1x100GE-1
    • 1x50GE-1
    • 1x25GE-1
  • 400GE-4 Reconfigurable:
    • 1x400GE-4
    • 2x200GE-2
    • 4x100GE-1
    • 1x200GE-4
    • 2x100GE-2
  • 200GE-4 Reconfigurable:
    • 1x200GE-4
    • 1x200GE-2
    • 2x100GE-1
    • 2x100GE-2
    • 1x100GE-4
    • 4x50GE-1
    • 2x50GE-2
  • 200GE-2 Reconfigurable
    • 1x200GE-2
    • 1x100GE-2
    • 2x100GE-1
    • 2x50GE-1
    • 1x50GE-2
Startup profile - Port <0-N>

None

Profile-0 (Base Profile)

Profile 1-N (N is the number of secondary profiles or profile groups)

None Selects the startup profile number associated with each port.
  • None indicates that the secondary profile group contains an unused port.
Figure 10. IP Parameter Editor: PTP Options tab
Table 75.  Parameter Settings: PTP Options Tab
Parameter Supported Values Default Setting Description
PTP Options 6
Enable IEEE 1588 PTP

On

Off

Off

Enable this option to add IEEE 1588 PTP Timestamp offload functions to the IP core. The IP core can generate TX timestamps and RX timestamps.

Timestamp accuracy mode

Basic

Advanced

Advanced Select PTP TX and RX timestamps accuracy mode.
In Basic mode, supports the following timestamps accuracy:
  • ± 3ns for 10GE, and 25GE Ethernet rate
  • ± 8ns for 50GE, 100GE, 200GE, and 400GE Ethernet rate
In Advanced mode, supports the following timestamps accuracy:
  • ± 1.5ns for 10GE, 25GE, 50GE, 100GE, 200GE, and 400GE Ethernet rate
Note: The timestamp accuracy values in Advanced modes is not available for some secondary profiles.
Timestamp fingerprint width 8 - 32 8

Specify the width of the timestamp fingerprint in bits on the TX path. The default value is 8 bits.

PTP Logic Resource Optimization

The following options are available for FGT transceivers

25GE-1 Reconfigurable
  • 1x25GE-1/1x 10GE-1

50GE-1 Reconfigurable
  • 1x50GE-1
  • 1x50GE-1, 1x25GE-1/1x10GE

100GE-4 Reconfigurable
  • 1x100GE-4 /1x100GE-2
  • 1x100GE-4/1x100GE-2, 4x25GE-1/4x10GE-1
  • 1x100GE-4/1x100GE-2, 2x50GE-2/2x50GE-1, 4x25GE-1/4x10GE-1
  • 1x100GE-4 / 1x100GE-2, 1x25GE-1/1x10GE-1
  • 1x100GE-4 / 1x100GE-2, 1x50GE-2/1x50GE-1
  • 1x100GE-4/ 1x100GE-2, 1x50GE-2/1x50GE-1, 1x25GE-1
  • 1x100GE-4/1x100GE-2, 1x50GE-2/1x50GE-1, 1x25GE-1/1x10GE-1

100GE-2 Reconfigurable:
  • 1x100GE-2
  • 1x100GE-2, 2x25GE-1/2x10GE-1
  • 1x100GE-2, 1x50GE-2/2x50GE-1
  • 1x100GE-2, 1x50GE-2/2x50GE-1, 2x25GE-1/2x10GE-1
  • 1x100GE-2, 1x25GE-1/1x10GE-1
  • 1x100GE-2, 1x50GE-2/1x50GE-1
  • 1x100GE-2, 1x50GE-2/1x50GE-1, 1x25GE-1 /1x10GE-1

200GE-4 Reconfigurable:
  • 1x200GE-4
  • 1x200GE-4, 4x50GE-1/2x50GE-1
  • 1x200GE-4, 2x100GE-2/1x100GE-4
  • 1x200GE-4, 2x100GE-2/ 1x100GE-4, 4x50GE-1/2x50GE-1
  • 1x200GE-4, 1x50GE-1
  • 1x200GE-4, 1x100GE-2/ 1x100GE-4
  • 1x200GE-4, 1x100GE-2/1x100GE-4, 1x50GE-1

400GE-8 Reconfigurable
  • 1x400GE-8
  • 1x400GE-8, 4x100GE-2
  • 1x400GE-8, 2x200GE-4
  • 1x400GE-8, 2x200GE-4, 4x100GE-2
  • 1x400GE-8, 1x100GE-2
  • 1x400GE-8, 1x200GE-4
  • 1x400GE-8, 1x200GE-4, 1x100GE-2
Varies based on the selected reconfiguration group. The default option enables all ports and ethernet rates.

Determines the number of active ports and Ethernet rates available when PTP is enabled.

The Quartus® Prime software does not synthesize the PTP logics of unused ports or Ethernet rates of a reconfiguration group

This parameter is only available if PMA type is set to FGT.

Auto-Negotiation and Link Training Options
Enable auto-negotiation and link training

On

Off

Off Enables auto-negotiation and link training for the Ethernet port.

You must instantiate the F-Tile Auto-Negotiation and Link Training Intel FPGA IP to support this feature.7

Configuration, Debug, and Extension Options
Enable debug endpoint for transceiver toolkit

On

Off

Off Enables the Transceiver debug endpoint.

When turned on, an embedded Native PHY debug endpoint connects internally to the Avalon® memory mapped slave interface. The Native PHY debug endpoint can access now the transceiver registers space.

Enable debug endpoint for Ethernet toolkit

On

Off

Off Enables the Ethernet debug endpoint.

When turned on, an embedded Ethernet debug endpoint connects internally to the Avalon® memory mapped slave interface. You must enable this parameter to allow the System Console to access the Ethernet toolkit.

Figure 11. IP Parameter Editor: Profile(s) Configuration
Table 76.  Parameter Settings: Base Profile and Secondary Profile(s) Tab
Parameter Supported Values Default Setting Description
Profile #0 IP Configuration
Ethernet mode

25GE-1

50GE-1

100GE-1

100GE-2

100GE-4

200GE-2

200GE-4

400GE-4

400GE-8

25GE-1 Displays the default base profile per the selected reconfiguration group.
FEC mode

None

IEEE 802.3 BASE-R Firecode (CL74)8

IEEE 802.3 RS(528,514) (CL91)

IEEE 802.3 RS(544,514) (CL134)

Ethernet Technology Consortium RS(272, 258)

None Selects the FEC mode for base profile.
The IP core supports the following FEC types
  • IEEE 802.3 BASE-R Firecode is available only for 25GE MAC modes.
  • IEEE 802.3 RS(528,514) is typically used for NRZ modes.
  • IEEE 802.3 RS(544,514) is typically used for PAM4 modes.
  • Ethernet Technology Consortium RS(272,258) is a low-latency substitute for RS(544,514).
Note: Not all FEC modes are available for all base profiles.
Associated Port Number

0: Port 0

1: Port 1

2: Port 2

3: Port 3

4: All

Port 0
Selects the port number associated with the current secondary profile.
Note: The active ports depends on the selected Ethernet mode. Not all active ports are available.

This parameter is specific to the secondary profiles.

MAC settings same as Profile<n>, where <n> is the profile number

On

Off

Off When enabled, the port 0 contains the MAC parameter settings.

When disabled, you select a unique MAC parameters for the currently selected secondary profile.

This parameter is specific to the secondary profiles.

Profile #0 MAC Options

P0 Basic

TX maximum frame size

65 – 65535

1518

Maximum packet size (in bytes) the IP core can transmit on the Ethernet link without reporting an oversized packet in the TX statistics counters.

In PCS Only, OTN, and FlexE variations, this parameter has no effect and remains at the default value of 1518.

RX maximum frame size

65 – 65535

1518

Maximum packet size (in bytes) the IP core can receive on the Ethernet link without reporting an oversized packet in the RX statistics counters. If you turn on Enforce Maximum Frame Size parameter, the IP core truncates incoming Ethernet packets that exceed this size.

In PCS Only, OTN, and FlexE variations, this parameter has no effect and remains at the default value of 1518.

Enforce maximum frame size

On

Off

Off Specifies whether the IP core is able to receive an oversized packet or truncates these packets.

In a truncated packet, error signal indicates oversize and FCS error.

Link fault generation option

Off

Unidirectional

Bidirectional

Bidirectional

Specifies the IP core response to link fault events.

Bidirectional link fault handling complies with the Ethernet specification, specifically IEEE 802.3 Figure 81-11. Unidirectional link fault handling implements IEEE 802.3 Clause 66: in response to local faults, the IP core transmits Remote Fault ordered sets in interpacket gaps but does not respond to incoming Remote Fault ordered sets. The OFF option is provided for backward compatibility.

Bytes to remove from RX frames

None

Remove CRC bytes

Remove CRC and PAD bytes

Remove CRC bytes Selects whether the RX MAC should remove CRC bytes, or remove CRC and PAD bytes, or do not remove anything from incoming RX frames before passing them to the RX MAC Client. If the PAD bytes and CRC are not needed downstream, this option can reduce the need for downstream packet processing logic
Forward RX pause requests

On

Off

Off Selects whether the RX MAC forwards incoming PAUSE and PFC frames on the RX client interface, or drops them after internal processing.
Note: If flow control is turned off, the IP core forwards all incoming PAUSE and PFC frames directly to the RX client interface and performs no internal processing. In that case this parameter has no effect.
Use source address insertion

On

Off

Off Selects whether the IP core inserts source address in the outgoing packets.
TX VLAN detection

On

Off

Off

When selected VLAN and Stacked VLAN Ethernet types cause TX MAC to count frame as VLAN/SVLAN”

Recognized Ethernet types: ‘h8100, 'h88A8, 'h88F5, 'h9100, 'h9200
RX VLAN detection

On

Off

Off Specifies whether the IP core RX statistics block treats RX VLAN and Stacked VLAN Ethernet frames as regular control frames, or performs Length/Type field decoding, includes these frame in VLAN statistics, and counts the payload bytes instead of the full Ethernet frame in the RxFrameOctetsOK counter . If turned on, the IP core identifies these frames in RX statistics as VLAN or Stacked VLAN frames. If turned off, the IP core treats these frames as regular control frames.
Stop TX traffic when link partner sends PAUSE

Yes

NO-PFC Only

No

Disable flow control

No When set to Yes, both SFC and PFC are supported. When a pause frame is received, the TX MAC stops sending traffic. When set to No, only SDC is supported. When a pause frame is received, the TX MAC does not stop sending traffic. Set to Disable flow control to disable flow control entirely.

P0 Specialized

Enable strict preamble check

On

Off

Off If turned on, the IP core rejects RX packets whose preamble is not the standard Ethernet preamble (0x55_55_55_55_55_55).

This option provides an additional layer of protection against spurious Start frames that can occur at startup or when bit errors occur.

Enable strict SFD check

On

Off

Off If turned on, the IP core rejects RX packets whose SFD byte is not the standard Ethernet SFD (0xD5).

This option provides an additional layer of protection against spurious Start frames that can occur at startup or when bit errors occur.

Average inter-packet gap

1

8

10

12

12

Specifies the average minimum inter-packet gap (IPG) the IP core maintains on the TX Ethernet link. Specifies the average minimum inter-packet gap (IPG) the IP core maintains on the TX Ethernet link.

The default value of 12 complies with the Ethernet standard.

The remaining values support increased throughput.

The value of 1 specifies that the IP core transmits Ethernet packets as soon as the data is available, with the minimum possible gap. The IPG depends on the space you leave between frame data as you write it to the core. The IP core no longer complies with the Ethernet standard but the application has control over the average gap and maximizing the throughput.

Enable preamble passthrough

On

Off

Off
If turned on, the IP core is in RX and TX preamble pass-through mode. In RX preamble pass-through mode, the IP core passes the preamble and SFD to the client instead of stripping them out of the Ethernet packet. In TX preamble pass-through mode, the client specifies the preamble to be sent in the Ethernet frame.
Note: When PTP is enabled, you must manually program the ptp_dr_cfg register to 0x1 for profiles that have this option enabled. For more information about this register, refer to F-Tile Ethernet Intel® FPGA Hard IP Ethernet Register Map.
Additional IPG removed per AM period 0-16536 0

Specifies the number of inter-packet gaps the IP core removes per alignment marker period, in addition to the default number required for protocol compliance.

Each increment of 1 in the value of Additional IPG removed per AM period increases throughput by 3ppm in 100GE variations. To specify larger throughput increases, use the Average Inter-packet Gap parameter.

Figure 12. Analog Parameter Options for FGT PMA in Parameter Editor
Table 77.  FGT TX Equalization (EQ) PM (N=0-32)
Parameter Values Default Settings Description
FGT TXEQ Post Tap 1, 1.0 step size 0 to 19 0 Options for FGT TX EQ Post Tap 1, in 1.0 step size increments.
FGT TXEQ Pre Tap 1, 1.0 step size 0 to 55 7 Options for FGT TX EQ Pre Tap 1, in 1.0 step size increments.
FGT TXEQ Pre Tap 2, 1.0 step size 0 to 15 5

Options for FGT TX EQ Pre Tap 2, in 1.0 step size.

FGT TXEQ Main Tap, 1.0 step size 0 to 7 0 Options for FGT TX EQ Main Tap, in 1.0 step size increments.
Table 78.  FGT RX Analog Parameter Options
Parameter Values Default Settings Description
Select FGT RX Onchip Termination RX_ONCHIP_TERMINATION_R_1(85 Ohms)

RX_ONCHIP_TERMINATION_R_2(100 ohms)

RX_ONCHIP_TERMINATION_R_1(85 Ohms) Selects FGT RX termination resistor setting.
Enable FGT RX AC Couple DISABLE

ENABLE

ENABLE Enable RX external AC coupling setting.
Enable FGT VSR mode VSR_MODE_LOW_LOSS

VSR_MODE_HIGH_LOSS

VSR_MODE_DISABLE

VSR_MODE_LOW_LOSS Enable VSR mode setting.
RXEQ VGA Gain 0 to 63 0 Options for RX EQ VGA gain value, in 1.0 step size increments.
Note: This parameter is only available when the Adaptation mode is set to manual in RX Datapath Options.
RXEQ High Frequency Boost 0 to 63 0 Options for RX EQ high frequency boost value, in 1.0 step size increments..
Note: This parameter is only available when the Adaptation mode is set to manual in RX Datapath Options.
RXEQ DFE Data Tap1 0 to 63 0 Options for RX EQ DFE data tap1 value, in 1.0 step size increments. Default value is 0.
Note: This parameter is only available when the Adaptation mode is set to manual in RX Datapath Options.
Figure 13. Analog Parameter Options for FHT PMA in Parameter Editor
Table 79.  FHT TX Analog Parameter Options
Parameter Values Default Settings Description

FHT TX P1

Enable FHT TX P&N Invert Disabled

Enabled

Disabled Enable FHT TX P and N inversion.
Enable FHT TXOUT Tristate Disabled

Enabled

Disabled Enable tristate on FHT TX serial outputs.
Select FHT TX Termination TXTERM_OFFSET_P0(90 Ohms)

TXTERM_OFFSET_M1(96.8 Ohms)

TXTERM_OFFSET_P0(90 Ohms) Selects FHT TX termination resistor setting.
FHT TX Equalization (EQ) Analog Parameter Options
Note: The equations in the PMA Architecture section of the F-Tile Architecture and PMA and FEC Direct PHY IP User Guide bound the allowable FHT TX Equalizer setting combinations.

Post-Cursor 4, 0.25 step size

-8.0 to +7.75 0.0 FHT post tap 4 coefficients, 0.25 step size.
Post-Cursor 3, 0.25 step size -8.0 to +7.75 0.0 FHT post tap 3 coefficients, 0.25 step size.
Post-Cursor 2, 0.25 step size -8.0 to +7.75 0.0 FHT post tap 2 coefficients, 0.25 step size.
Post-Cursor 1, 0.5 step size -16.0 to +15.5 0.0 FHT post tap 1 coefficient, 0.5 step size.
Main-Cursor,0.5 step size 0.0 to 41.5 41.5 FHT main tap coefficient, 0.5 step size.
Pre-Cursor 1,0.5 step size -16.0 to +15.5 0.0 FHT pre tap 1 coefficient, 0.5 step size.
Pre-Cursor 2,0.25 step size -8.0 to +7.75 0.0 FHT pre tap 2 coefficients, 0.25 step size.
Pre-Cursor 3,0.25 step size -8.0 to +7.75 0.0 FHT pre tap 3 coefficients, 0.25 step size.
Table 80.  FHT RX Analog Parameter Options
Parameter Values Default Values Description
Enable FHT RX P&N Invert Disabled

Enabled

Disabled Enable FHT RX P and N inversion.
Select FHT RX Termination RXTERM_OFFSET_P0(90 Ohms)

RXTERM_OFFSET_P2(94.6 Ohms)

RXTERM_OFFSET_P3(97.7 Ohms)

RXTERM_OFFSET_P4(100 Ohms)

RXTERM_OFFSET_P5(102.3 Ohms)

RXTERM_OFFSET_P6(105.4 Ohms)

RXTERM_OFFSET_P7(107.7 Ohms)

RXTERM_OFFSET_P8(110 Ohms)

RXTERM_OFFSET_M4(80.8 Ohms)

RXTERM_OFFSET_M5(83.1 Ohms)

RXTERM_OFFSET_M6(85.4 Ohms)

RXTERM_OFFSET_M7(87.7 Ohms)

RXTERM_OFFSET_P0(90 Ohms) Selects FHT RX termination resistor setting.

FHT PLL

Select FHT external AC Cap EXTERNAL_AC_CAP_ENABLE

EXTERNAL_AC_CAP_DISABLE

EXTERNAL_AC_CAP_ENABLE Enable external AC coupling capacitance.
6 Mixing of PTP options for different profiles is not allowed therefore PTP options under General Options tab apply to all ports and profiles.
7 This feature is not available for the C2C modes, OTN, or FlexE client interface.
8 This mode is only available for 25G Ethernet mode.