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PCI bridge to quad serial and parallel portThe OX16PCI954 is not recommended for new designs. Although there are no current plans to EOL this device, we highly suggest OXuPCI954.Combining PLX's high performance UART and PCI technology, the OX16PCI954 is the ideal connectivity solution for a diverse range of products requiring medium density port expansion including: PC Add-on Cards, Industrial PC, Point of Sale Terminals, Industrial Control and Network Management.This highly integrated device is backed by certified device drivers, for a wide range of operating systems, to deliver ultimate performance with reduced design cycles and accelerated time to market.The OX16PCI954 is a single chip, quad serial and single parallel port or local bus solution for PCI based serial and parallel connectivity applications. The device incorporates PLX's high performance, feature-rich UART technology that combines the industry's fastest baud rates and deepest FIFOs with unrivalled flexibility. It adds up to a class leading serial connectivity solution.
OX16PCI954 Maximum Ratings
Symbol
Parameter
Min
Max
Units
VDD
DC supply voltage
4.5
5.5
V
TC
Temperature
0
70
OX16PCI954 Features
·Four 16C950 High performance UART channels ·Arbitrary trigger levels for receiver and transmitter FIFO interrupts and automatic in-band and out-of- band flow control ·8/32-bit Pass-through Local Bus ·IEEE1284 EPP parallel port · Infra-red (IrDA) receiver and transmitter operation ·Multi-function target PCI controller, fully PCI 2.2 andPCI Power Management 1.0 compliant ·9-bit data framing as well as 5,6,7 and 8 · 12 multi-purpose IO pins which can be configured as interrupt input pins
·UARTs fully software compatible with 16C550-type devices. · Can be reconfigured using optional non-volatileconfiguration memory (EEPROM)
·Baud rates up to 15Mbps in asynchronous mode and 60Mbps in external 1x clock mode · Global Interrupt Status and readable FIFO levels tofacilitate implementation of efficient device drivers ·128-byte deep FIFO per transmitter and receiver ·Flexible clock prescaler from 1 to 31.875 · Operation via IO or memory mapping. ·Automated in-band flow control using programmable Xon/Xoff in both directions · Detection of bad data in the receiver FIFO · 5.0V operation ·Automated out-of-band flow control using CTS#/RTS#and/or DSR#/DTR# ·160 TQFP package