资料介绍
Scalable Serdes Framer Interface (SFI-S): Implementation Agreement for Interfaces beyond 40G for Physical Layer Devices specifies the point-to-point electrical connections between the optical module, forward error correction (FEC) processor, and framer devices,which comprise the typical line interface of optical communications systems with 80–160 Gb/s links. Because the maximum data rate per electrical signal is less than the optical data rate, amulti-bit bus is required. SFI-S is defined to support an n-bit wide data bus for n= 4 to 20 with each channel operating at data rates defined by the common electrical interface (CEI) and the CEI short-reach (SR) electrical specification. An additional channel contains out-of-band data samples to enable the deskew algorithm, which operates continuously on the sink side of the interface to track and compensate for skew.Figure 1
shows the SFI-S System Reference Model from the OIF-SFI-S-01.0
Implementation Agreement……
SFI- 参考设计应用指南 XAPP553
