NetMos 9835 PCI Multi-I/O Controller : The Nm9835 is a PCI based dual-channel high performance UART with Enhanced bi-directional parallel controller. The Nm9835 offers 16 byte transmit and receive FIFO for each UART channel and 16 byte FIFO for printer channel. The Nm9835 perform serial- to-parallel conversions on data received from a peripheral device, and parallel-to-serial conversion on data received from its CPU. In addition, Nm9835 fully supports the existing Centronics printer interface as well as PS/2, EPP, and ECP modes.