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OXMPCI952-LQ-A Datasheet(PDF) 1 Page - Oxford Semiconductor |
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OXMPCI952-LQ-A Datasheet(HTML) 1 Page - Oxford Semiconductor |
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1 / 108 page  External—Free Release Oxford Semiconductor Ltd. 25 Milton Park, Abingdon, Oxon, OX14 4SH, UK Tel: +44 (0)1235 824900 Fax: +44(0)1235 821141 © Oxford Semiconductor 2005 OXmPCI952 DataSheet DS-0020 – June 2005 FEATURES • Dual 16C950 High performance UART channels • 8-bit Pass-through Local Bus (PCI Bridge) • IEEE1284 Compliant SPP/EPP/ECP parallel port (with external transceiver) • Efficient 32-bit, 33MHz, Multi-function target-only PCI controller, fully compliant to PCI Local Bus specification 3.0, and PCI Power Management Specification 1.1 • PCI and miniPCI Modes (with CLKRUN# and PME# generation in the D3cold state, in miniPCI mode) • UARTs fully software compatible with 16C550-type devices. • UART operation up to 60 MHz via external clock source. Up to 20MHz with the crystal oscillator. • Baud rates up to 60Mbps in external 1x clock mode and 15Mbps in asynchronous 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-of-band flow control • Infra-red (IrDA) receiver and transmitter operation • 9-bit data framing, as well as 5,6,7 and 8 bits • Detection of bad data in the receiver FIFO • Global Interrupt Status and readable FIFO levels to facilitate implementation of efficient device drivers. • Local registers to provide status/control of device functions. • 11 multi-purpose I/O pins, which can be configured as input interrupt pins or ‘wake-up’. • Auto-detection of a wide range of MicrowireTM compatible EEPROMs, to configure device parameters. • Function access, to pre-configure each function prior to handover to generic device drivers. • Operation via IO or memory mapping. • 3.3V operation (5v tolerance on selected I/Os) • Extended Operating Temp. Range : -40C to 105C • 160-pin LQFP/176-pin BGA package DESCRIPTION The OXmPCI952 is a single chip solution for PCI and mini- PCI based serial and parallel expansion add-in cards. It is a dual function PCI device, where function 0 offers two ultra-high performance OX16C950 UARTs, and function 1 is configurable either as an 8-bit Local Bus or a bi- directional parallel port. Each UART channel in the OXmPCI952 is the fastest available PC-compatible UART, offering data rates up to 15Mbps and 128-byte deep transmitter and receiver FIFOs. The deep FIFOs reduce CPU overhead and allow utilisation of higher data rates. Each UART channel is software compatible with the widely used industry-standard 16C550 devices (and compatibles), as well as the OX16C95x family of high performance UARTs. In addition to increased performance and FIFO size, the UARTs also provide the full set of OX16C95x enhanced features including automated in-band flow control, readable FIFO levels etc. To enhance device driver efficiency and reduce interrupt latency, internal UARTs have multi-port features such as shadowed FIFO fill levels, a global interrupt source register and Good-Data Status, readable in four adjacent DWORD registers visible to logical functions in I/O space and memory space. Expansion of serial cards beyond two channels is possible using the 8-bit pass-through Local Bus function. The addressable space can be increased up to 256 bytes, and divided into four chip-select regions. This flexible expansion scheme caters for cards with up to 18 serial ports using external 16C950, 16C952, 16C954 or compatible devices, or composite applications such as combined serial and parallel port expansion cards. The parallel port is an IEEE 1284 compliant SPP/EPP/ ECP parallel port that fully supports the existing Centronics interface. The parallel port can be enabled in place of the Local Bus. An external bus transceiver is required for 5V parallel port operation. The configuration register values are programmed using an external MicrowireTM compatible serial EEPROM. This EEPROM can also be used to provide function access, to pre-configure each UART into enhanced modes or pre- configure devices on the local bus/parallel port, prior to any PCI configuration accesses and before control is handed to (generic) device drivers. OXmPCI952 DATA SHEET Integrated High Performance Dual UARTs, 8-bit Local Bus/Parallel Port. 3.3v PCI/miniPCI interface . |
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