E-Tile Transceiver PHY User Guide

ID 683723
Date 9/30/2022
Public
Document Table of Contents

1.5.6. Feature Comparison Between Transceiver Tiles

Table 11.  Transceiver Tile Feature Comparison
Feature L-Tile/H-Tile E-Tile
Native PHY IP Configure NRZ mode Configure NRZ and PAM4
PLL IP ATXPLL, fPLL and CMU PLL IPs (available in the IP catalog) Embedded in Native PHY and Ethernet Hard IPs
Reset controller IP Reset controller IP (available in the IP catalog) Embedded in the Native PHY and Ethernet Hard IP cores
Clocking modes
  • TX PMA bonding up to 24 channels
  • ATXPLL-fPLL and fPLL-fPLL cascade
  • VCXO replacement (ATXPLL and fPLL fractional division support)
Only TX PMA bonding supported
Transceiver Calibration Transceiver power-up calibration and recalibration Transceiver power-up calibration and recalibration
Configuration ports

For each instantiated IP (Native PHY IP core, ATXPLL/fPLL), there is one configuration port.

For each instantiated Native PHY IP core, there are two configuration ports: one for the Native PHY IP core and another for RS-FEC.
Reconfiguration and register map

Registers available to configure the following:

  • PMA
  • PCS
  • ATXPLL
  • fPLL

Separate register map for the following:

  • PMA
  • RS-FEC
  • EHIP_LANE + EHIP_CORE
  • 1588 PTP
PCS Available within the Native PHY IP core Available within Ethernet Hard IP, not in the Native PHY IP core
Transmitter PMA One post-tap and one pre-tap emphasis

One post-tap and three pre-tap emphasis for PAM4

One post-tap and three pre-tap emphasis for NRZ

Receiver PMA

Four RX adaptation modes:

  • Manual VGA, Manual CTLE, DFE Off
  • Adaptive VGA, Adaptive CTLE, DFE Off
  • Adaptive VGA, Adaptive CTLE, 1-Tap Adaptive DFE
  • Adaptive VGA, Adaptive CTLE, All-Tap Adaptive DFE

Two RX adaptation modes:

  • Continuous Adaptation
  • Initial Adaptation
Loopback paths Serial, Pre-CDR Reverse Serial, Post-CDR Reverse Serial

Internal serial loopback (serial TX to serial RX)

Reverse parallel loopback (parallel RX to parallel TX)

Hard PRBS Available Available
Hard PRBS error injection Not available Available
Eye viewer On-Die Instrumentation through Transceiver Toolkit and Avalon® memory-mapped interface access Eye viewer available only through Transceiver Toolkit

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