10G-800G Ethernet/FiberChannel/FlexO Core

Overview

The 10G-800G Multi-channel Multi-rate Ethernet/FiberChannel/FlexO Core (OmegaCORE800G_ZX) Core from Alphawave is a multi-rate Ethernet aggregator that supports tributaries from 800GE, to 1GE. It is our 3rd generation of OmegaCORE solution utilizing the 112G/s serdes and 56G/s serdes.

The supported ethernet protocols are 800GE, 400GE, 200GE, 100GE, 50GE, 40GE, 25GE, 10GE, 1GE, and 256GFC, 128GFC, 64GFC, 32GFC, 16GFC, 10GFC as well as FEC framing of FlexO-1/2/4-SR and OTU25/50-RS. It supports any legal combination of Ethernet/Fiberchannel/FlexO rate up to 800G. This Core supports up to a maximum of 8 ethernet channel and works most effective and efficient with latest 112G/s serdes. With Core clock frequency of 1.6GHz at 7nm or 5nm, this Core delivers smallest footprint among similar solution in the Ethernet/Fiberchannel/ FlexO SOC market.

800GE Support

The Core supports 800GE which uses a full 800GE MAC and a pair of “bonded” 2 x 400GE PCS. The 800GE takes advantage of 112G/s serdes and uses virtual logical lanes in a “bonded” 2 x 400GE PCS. This improves power efficiency in 800G operation. The 800GE is compliant to the Ethernet Technology Consortium Standard.

The north-bound interface from the multi-channel MAC provides a configurable system interface. The Multi-channel MAC manages the mapping between individual MACs and the assigned I/O or I/O group.

The southbound interface is mapped (at the PMA layer) to the on-chip SERDES. The core is responsible for channel alignment and FEC (where applicable).

Key Features

800GE BASE-R PCS Core Features
- PCS layer formed by bonded 2x 400GE PCS in PCS Layer
- Using 32 virtual logical lanes based on 2 x 400GE PCS to reduce power in 800G operation
- Well designed into using 112G/s Serdes to provide highest port density for 800G Ethernet solution.
Specification
400G/200G/100G/50G/40G/25G/10G BASE-R PCS Core Features
- PCS TX Core
  - 256/257B transcoding (to reduce overhead for FEC insertion) (not applicable for 10GE)
  - X58 Scrambling (optional bypass) (not applicable for 10GE)
  - 64B/66B encoding of incoming MII signal
  - Idle block removal (to reduce overhead for AM insertion)
  - Alignment Marker (AM) insertion. Unique marker portion of AM for each lane is s/w configurable.
  - Test pattern generation (scrambled idles)
  - Clause 45 MDIO register set
  - Error detection and interrupt reporting
- Specific KP4 FEC Feature for 800GBASE-R/400GBASE-KP4/200GBASE-KP4/100GBASE-KP/50GBASE-KP
  - KP4 (RS544,514) Forward Error Correction (FEC) parity calculation and with symbol distribution
- Specific KR4 FEC Feature for 100GBASE-KR4/CR4, 50GBASE-KR2 and 25GBASE-KR
  - KR4 (RS528,514) Forward Error Correction (FEC) parity calculation and insertion with symbol distribution
- Specific FC FEC Feature for 50GBASE-R4, 40GBASE-R, 25GBASE-R and 10GBASE-R
  - RS (2112,2080) Forward Error Correction (FEC) parity calculation and insertion
- PCS RX Core
  - 64B/66B decoding to MII signal
  - Reverse 256/257B transcoding (not applicable to 10GE)
  - X58 De-scrambling (optional bypass) (not applicable for 10GE)
  - Alignment marker removal (where applicable)
  - Unique marker portion of AM for each lane is s/w configurable (where applicable)
  - Test pattern monitoring
  - Clause 45 MDIO register set
  - Error detection and interrupt reporting
  - Loopback from TX MII to RX MII
  - Performance Monitoring and Statistics
    - Dynamic skew measurement for each lane
    - PCS Status – link up/down
    - High bit error rate (hi-BER)
    - BER counter
    - Test pattern error counter
    - Multi-lane AM status (locked and aligned/not locked and aligned)
    - FEC Corrected code word count (with FEC enabled)
    - FEC corrected 1s and 0s counts
    - FEC symbol error histogram for KP, KR FEC, and FC FEC
    - FEC Uncorrected code word counts
    - FEC symbol error counters
    - FEC degrade SER
    - FEC Hi-SER alarm
  - Specific KP4 FEC Feature for 800GBASE-R/400GBASE-KP4/200GBASE-KP4/100GBASE-KP/50GBASE-KP
    - Alignment lock and lane deskew
    - Lane reordering
    - KP4 (RS544,514) FEC decoding and error correction
  - Specific KR4 FEC Feature for 100GBASE-KR4/CR4, 50GBASE-KR2 and 25GBASE-KR
    - Alignment lock and lane deskew
    - KR4 (RS528,514) FEC decoding and correction
  - Specific FC FEC Feature for 50GBASE-R4, 40GBASE-R, 25GBASE-R and 10GBASE-R
    - Alignment sync
    - FC FEC (RS2112,2080) FEC decoding and correction
  - 800G/400G/200G/100G/50G/40G/25G/10G MAC Core Features (per channel)
    - TX FCS insertion
    - TX MAC control frame generation
      - Unicast/Multicast PAUSE frame generation by MAC client or by software
      - Software configurable PAUSE quanta
    - TX Performance Monitoring and Statistics (counters are 38-bit to accommodate 1-second of statistic counts)
      - Byte count
      - Frame count
      - PAUSE frame count
      - Multicast frame count
      - Unicast frame count
      - Undersize frame count
      - Oversize frame count
      - Frame count statistic for the following sized frames:
        
        64
        
        65-127
        
        128-255
        
        256-511
        
        512-1023
        
        1024-1518
        
        1519-1522
        
        1523-1548
        
        1549-2047
        
        2048-4095
        
        4096-8191
        
        8192-9215
        
        > 9215
      - RX FCS check and removal
      - RX PAUSE frame processing and handling
      - RX Performance Monitoring and Statistics (counters are 38-bit to accommodate 1-second of statistic counts)
        
        Bad FCS
        
        Bad Preamble
        
        Byte count
        
        Frame count
        
        PAUSE frame count
        
        Multicast frame count
        
        Unicast frame count
        
        Bad FCS frame count
        
        Bad byte count
        
        Bad frame count
        
        Bad aligned frame count
        
        Jabber frame count
        
        Runt frame count
        
        Undersize frame count
        
        Oversize frame count
        
        Frame count statistic for the following sized frames:
        
        64 byte
        
        65-127
        
        128-255
        
        256-511
        
        512-1023
        
        1024-1518
        
        1519-1522
        
        1523-1548
        
        1549-2047
        
        2048-4095
        
        4096-8191
        
        8192-9215
        
        > 9215
        
        Additional Add-on features
        
        HiGig, HiGig+ and HiGig-lite
        
        1588v2, OAM, OWAMP, TWAMP 1-step and 2-step time stamping
        
        xGFC/FlexE/OTN/FlexO/OTU25/50-RS access port
        
        FC1200 to 256GFC FC2 Monitoring
        
        802.3br Express Traffic
        
        802.1Qbb Priority Flow Control (PFC) up to 8 priorities

Benefits

Combines Ethernet streams at a variety of rates to a single multi-channel interface at the MAC
The E-pak800 allows access connections supporting 1GE, 10GE, 25GE, 40GE, 50GE, 100GE, 200GE, 400GE and 800GE in any combination on any port or groups of ports to a maximum total bandwidth of 800Gbps
Support IEEE 802.3 required FEC variances –LL FEC RS (272, 58), KR4 FEC RS(528,514), KP4 FEC RS(544,514), FC FEC (2112,2080)
Support all IEEE802.3 PCS, FEC, and MAC statistics and alarms, and more
Supports HiGig, HiGig+ and HiGig-Lite
Dynamically change rate on any port without affecting existing traffic
Ethernet Technology Consortium 800GE supports with bonded 2 x 400GE PCS and a single 800G MAC
Fully utilize the advantages of 112G serdes to get highest possible port density per 800G.
Provide OTN, FlexE, FlexO, OTU25/50-RS, xGFC access ports
Optional 10GFC to 256GFC Monitoring
Ultra low latency and power efficient FEC engine
Support 1588, 802.1Qbb (PFC) and 802.3br express traffic (TSN).
Table 1: Example Configurations of PCS core (find out more details from www.precise-itc.com)

Block Diagram

Applications

High-density routers for data centers
Telecom/5G wireless
Artificial Intelligence (AI)
Access switches

Deliverables

AREA and Latency (Estimated) :
Cell Area : call for detail
Gate count : call for detail
TX/RX round trip latency from MAC User Interface :call for detail
Telco Edition:
Specially designed for telecom application and service provider ASICs
OTN mapping portsFlexE access ports
FlexO, OTU25 and OTU50 framing and access ports
Multiple level timestamp and UDP checksum update
High precision timestamp accuracy
Feature-rich SW programmability
Multiple MAC client access ports

Technical Specifications

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