SoftIP IP Group of Alphawave IP
SoftIP IP Group of Alphawave IP

Epak 800G_ZX


10G-800G Ethernet/FiberChannel/ FlexO Core

The 10G-800G Multi-channel Multi-rate Ethernet/FiberChannel/FlexO Core (Epak800G_ZX)  Core from Precise-ITC is a multi-rate Ethernet aggregator that supports tributaries from 800GE, to 1GE. It is our 3rd generation of Epak 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).


  • Combines Ethernet streams at a variety of rates to a single multi-channel interface at the MAC
  • The Epak800G_ZX 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 (272,258), 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 FC1200 to 256GFC FC2 Monitoring
  • Ultra low latency and power efficient FEC engine
  • Support 1588, 802.1Qbb (PFC) and 802.3br express traffic (TSN).


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

Table 1: Example Configurations of PCS Core

PCS Channel Type Num Channel(s)
with 16 x 56G Serdes Config
Num Channel(s)
with 8 x 112G Serdes Config
800GBASE-R8   1        
800GBASE-R16 1          
400GBASE-R16 1   X      
400GBASE-R8 2 1 X      
400GBASE-R4 2 X      
200GBASE-R8  2  1 X      
200GBASE-R4 4 2 X      
200GBASE-R2 4 X      
100GBASE-R4  4 X X   X
100GBASE-R2 8 4 X      
100GBASE-R1   8 X      
50GBASE-R4 4 2       X
50GBASE-R2 8 4 X X    
50GBASE-R1 16 8 X      
40GBASE-R4 4 2     X X
25GBASE-R1 16 8   X X X
10GBASE-R 16 8     X X
1GBASE-X / SGMII / 100M /10M 16 8       X

Cell Area : call for detail

Gate count : call for detail

TX/RX round trip latency from MAC User Interface: call for detail

  • Specially designed for telecom application and service provider ASICs
  • OTN (66b) mapping ports
  • FlexE access ports
  • FlexO-1/2/4-SR, OTU25 /50-RS framing and access ports
  • Multiple level timestamp and UDP checksum update
  • High precision timestamp accuracy
  • Feature-rich SW programmability
  • Multiple MAC client access ports