The VNC1L IC provides all USB host interface and data transfer functions in addition to encapsulating the USB device classes. It also manages the file allocation table (FAT) structure by use of a straightforward command set. Vinculum is based around a unique 8-bit processor as the controller. A 32- bit co-processor provides file system calculations and two direct memory access (DMA) engines handle data transfers. The device contains 64Kbytes of embedded flash program memory and 4Kbytes of internal data SRAM. Programming of its 8-bit core is by an easy to use high level assembly language that typically produces code half the size of other similar controllers. The VNC1L is specifically targeted at embedded USB controller applications. The single, low power IC requires just a crystal and a few passive components to bring USB connectivity to a wide range of devices that previously did not have the capability.
The VF2F2 is supplied fully assembled together with schematics, firmware and printed circuit board gerber files. They are also available for download from the Vinculum web site. http://www.vinculum.com/