The MCS9835 is a PCI based dual-channel high performance UART with enhanced bi-directional parallel controller. The MCS9835 offers 16-byte transmit and receive FIFO for each UART channel and 16-byte FIFO for printer channel. The MCS9835 performs serial-to-parallel conversions on data received from a peripheral device, and parallel-to-serial conversions on data received from its CPU. In addition, MCS9835 fully supports the existing Centronics printer interface as well as PS/2, EPP, and ECP modes.

The MCS9835 is ideally suited for PC applications, such as high speed COM ports and parallel ports. The MCS9835 is available in a 128-pin QFP package. It is fabricated using an advanced submicron CMOS process to achieve low drain power and high speed requirements.

Features

	Single 5V operation (Standard)
	Single 3.3V - 5V operation (RoHS)
	Low power
	PCI compatible dual UART
	16-byte transmit-receive FIFO (UART)
	Selectable receive trigger levels
	Programmable baud rate generator
	Modem control signals
	5, 6, 7, 8-bit characters selection
	Even, odd, no parity, or force parity generations
	Status report capability
	Compatible with 16C550
	Multi-mode compatible controller (SPP, PS2, EPP, ECP)
	Fast data rates up to 1.5 MBps (parallel port)
	On-chip oscillator
	Re-map function for legacy ports
	16-byte FIFO (parallel)
	Microsoft compatible
	Software programmable mode selects
	128-pin QFP package

Applications

	Printer server
	Portable backup units
	Printer interface
	Embedded applications
	High speed modems
	Monitoring equipment
	Add-on I/O cards
	Serial networking