OX16PCI954 Datasheet | Oxford Semiconductor

FEATURES - - - - - - - - - - Four 16C950 High performance UART channels 8/32-bit Pass-through Local Bus IEEE1284 EPP parallel port Multi-function target PCI controller, fully PCI 2.2 and PCI Power Management 1.0 pliant UARTs fully software patible 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# - - - - - - - - - - OX16PCI954 Integrated Quad UART and PCI interface Arbitrary trigger levels for receiver and transmitter FIFO interrupts and automatic in-band and out-ofband flow control Infra-red (Ir DA) receiver and transmitter operation 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 Can be reconfigured using optional non-volatile configuration memory (EEPROM) Global Interrupt Status and readable FIFO levels to facilitate implementation of efficient device drivers Operation via IO or memory mapping. Detection of bad data in the receiver FIFO 5.0V operation 160 TQFP package DESCRIPTION The OX16PCI954 is a single chip solution for PCI-based serial and parallel expansion add-in cards. It is a dual function PCI device, where function 0 offers four ultra-high performance OX16C950 UARTs, and function 1 is configurable to offer either an 8 bit Local Bus or a bidirectional parallel port. Serial port cards with up to 8 ports (or with 4 serial ports and a parallel port) can be designed without redefining any device or timing parameters. Each channel in the OX16PCI954, the fastest available PC-patible UART, offers data rates up to 15Mbps and 128-deep transmitter and receiver FIFOs. Deep FIFOs reduce CPU overhead and allow utilisation of higher data rates. Each channel is software patible with the widely used industry-standa...