UPD720202K8-711-BAA-A

UPD720202K8-711-BAA-A Application Field and Working Principle

UPD720202K8-711-BAA-A are high-speed interface controllers from Renesas Electronics. The purpose of such parts is to allow data transfer and communication between communication interface devices and an embedded system.

Application Field

The UPD720202K8-711-BAA-A is used in a wide range of embedded systems including industrial automation, automotive, and consumer electronic devices. It is a single USB 3.0 OTG controller that provides full-speed (480Mbps) and high-speed (5Gbps) transmission mode support. It also supports dual-speed USB 2.0 and USB1.1, with an integrated transceiver and integrated voltage regulator.

The UPD720202K8-711-BAA-A is also primarily used in USB peripherals that support charging downstream port functionality, such as power-over-USB (PoU) applications, as well as the ability to detect low power events. It is also suitable for a variety of products such as PC-related USB 3.0 hubs, OTG USB3 card readers, mobile phones, digital cameras, and other consumer electronic devices.

Working Principle

The working principle of the UPD720202K8-711-BAA-A is based on the principles of parallel link communication. It is a series of start and end bit transfers, known as ‘words’. A single word is transferred within a half cycle of the source clock. The source transmits the Start bit followed by 8 bits of data. The data is followed by E and O parity bits, and a Stop bit is transmitted following the parity bits.

In a USB 3.0 interface, multiple lanes are used. Four bits of data, including ECC information, are packed into a single lane. During transmission, the source first sends a bit indicating the number of lanes being used and then sends the data, one lane at a time. This process is repeated for each subsequent lane. The UPD720202K8-711-BAA-A then uses internal pipelines to decode and reorder the data into its original format.

The UPD720202K8-711-BAA-A also provides a clock synchronization feature wherein it can synchronize itself and other interface controllers to the speed of the transmitting device. This allows for much faster communication between the host and peripheral device.

Conclusion

UPD720202K8-711-BAA-A are high-speed interface controllers from Renesas Electronics. The purpose of such parts is to allow data transfer and communication between communication interface devices and an embedded system. The UPD720202K8-711-BAA-A is used in a wide range of embedded systems including industrial automation, automotive, and consumer electronic devices. The working principle of the UPD720202K8-711-BAA-A is based on the principles of parallel link communication with multiple lanes. This interface controller can also synchronize itself to the speed of the transmitting device allowing for faster communication between the host and peripheral device.