Telecoms, Datacoms, Wireless, IoT


USB 3.0 interfacing chips

4 February 2015 Telecoms, Datacoms, Wireless, IoT

The FT600Q and FT601Q are FTDI Chip’s first generation USB 3.0 products that function as SuperSpeed USB 3.0 to FIFO bridges, providing data burst rates of up to 3,2 Gbps. The FT600Q comes in a 56-pin QFN package and has a 16-bit wide FIFO bus interface, while the FT601Q comes in a 76-pin QFN package and has a 32-bit wide FIFO bus interface.

Both these chips support up to eight endpoints, other than the management endpoints. The endpoints are linked to configurable endpoint buffers of 16 KB length for IN and 16 KB for OUT. They support two interfacing modes - the 245 FIFO mode and the multi-channel FIFO mode. The former has a simpler protocol, but for more sophisticated designs, the multi-channel FIFO mode supports up to four logical FIFO channels and data structures optimised for higher throughputs.

The remote wake-up function on these chips can be used to rapidly bring the USB host controller out of suspend mode. The USB battery charger detection function enables USB peripheral devices to detect the presence of a higher-current power source in order to boost charging capabilities. This means that the FT600 can detect connection to a USB-compliant dedicated charging port (DCP) and transmit a signal allowing external logic to switch to charging mode. The IC can also benefit from the higher power delivery capabilities that the USB 3.0 standard supports while still being able to transfer data.

Engineers are furnished with a great deal of flexibility to configure FT600/1Q to their desired application. Among these are multi-function printers, scanners, high-resolution video cameras, still image cameras, high-definition displays, data acquisition systems, surveillance equipment and medical/industrial imaging systems.

The ICs have an operating temperature range that covers -40°C to 85°C. Catering for a design which incorporates multiple data endpoints, a completely new driver architecture has been developed and optimised to extract full performance from the system whilst maintaining FTDI Chip’s standard D2xx API. Driver support allows the device to be used with Windows, Linux and Mac operating systems.



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