DESCRIPTION

The OX16PCI952 is a single chip solution for PCI-based serial and parallel expansion add-in cards. It is a dual function device, offering IO or memory mapped access to the two ultra-high performance OX16C950 UARTs and the bi-directional parallel port. These functions are defined by Function 0 and Function 1, respectively. Serial port cards with 2 serial ports and a parallel port can be designed without redefining any device parameters.

FEATURES

• Two 16C950 High performance UART channels

• IEEE1284 Compliant SPP/EPP/ECP parallel port

• Multi-function target PCI controller. Fully compliant to PCI bus specification 2.2 and PCI Power Management 1.0.

• Function access to pre-configure each UART and the parallel port, prior to handover to generic device drivers.

• UARTs fully software compatible with 16C550-type devices.

• Baud rates up to 15Mbps in asynchronous mode and 60Mbps in external 1x clock mode

• 128-byte deep FIFO per transmitter and receiver

• Flexible clock prescaler from 1 to 31.875

• Automated in-band flow control using programmable Xon/Xoff in both directions

• Automated out-of-band flow control using CTS#/RTS# and/or DSR#/DTR#

• Arbitrary trigger levels for receiver and transmitter FIFO interrupts and automatic in-band and out-ofband flow control

• Infra-red (IrDA) receiver and transmitter operation

• 5, 6, 7, 8 and 9-bits data framing

• Global Interrupt Status and readable FIFO levels to facilitate implementation of efficient device drivers

• Detection of bad data in the receiver FIFO

• 2 multi-purpose IO pins which can be configured as interrupt inputs or ‘wake-up’ pins (via local registers).

• Auto-detection of a range of optional MicrowireTM compatible EEPROMs, to reconfigure device.

• Operation via IO or memory mapping.

• 5.0V operation

• 128 pin TQFP package