VSC8488YJU

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VSC8488YJU is a high performance 400G Ethernet chip developed and manufactured by SALIX Technology. It possesses multiple ports which support data rates of up to 400 Gbps full duplex and a maximum aggregate transfer rate of 800 Gbps. VSC8488YJU follows the industry-standard IEEE 802.3bs, and features four-channel PAM4 physical coding sub-layer (PCS) for distances of up to 10 km.

Application Field

VSC8488YJU is mainly utilized for data-center applications. It is suitable for a multitude of protocols such as Ethernet, PCIe, and Fibre Channel, and can quickly process and transmit large amounts of data from a variety of devices. It is also widely used in cloud computing and 5G networks due to its ability to operate under high speeds.

Working Principle

VSC8488YJU is an application–specific integrated circuit (ASIC) that contains a processor, memory and input/output (I/O) logic. The ASIC is connected to the four physical coding sub-layers (PCS) which enable the encoding and transmission of data signals. The four PCS enable data transmission up to a maximum rate of 400 Gbps per lane. These PCS can then feed data into the transmission media layer, which is responsible for bearing the physical transmission of the data.

The other important components of the chip is the link layer. It is responsible for the protocol processing and error control of the data. It aids in ensuring that the data is received in an error-free manner at the receiving end. It reconfigures the device to its default state, if an error is detected. The link layer also comprises of FEC, framing and Retiming units. The link layer is in charge of the overall operation of the device, ensuring that the data is being transmitted and received in the most efficient manner.

VSC8488YJU also contains a complete set of test and management functions. It supports online monitoring of different parameters, such as real-time status and Ethernet flow statistics. Moreover, it supports various management functions such as device configuration, remote fault diagnosis, counters reading and port diagnostics.

In summary, VSC8488YJU is a high-performance 400G Ethernet chip that utilizes a four-channel PCS to transmit data up to 10km. It operates through various layers which are responsible for various aspects, such as the physical transmission of the data, protocol processing, error control, and other related tasks. Furthermore, it provides a wide range of test and management functions which help in enhanced performance and efficient operation of the device.

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