OX16PCI952-TQFP-A datasheet(5/76 Pages) OXFORD

Part #	OX16PCI952-TQFP-A

Description	Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface

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Manufacturer	OXFORD [Oxford Semiconductor]

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DataSheet Revision 1.1

Page 5

OX16PCI952

OXFORD SEMICONDUCTOR LTD.

Power management:

Both functions of the OX16PCI952 comply with the PCI

Power Management Specification 1.0 and the PC98/99

Power Management specifications, by offering the

extended capabilities for Power Management and

supporting the power states D0, D2 and D3. This achieves

significant power savings by allowing device drivers to

power down the PCI functions and disable the UART

channels and the parallel port.

A ‘wake-up’ event (the ‘power management event’) is

requested via the PME# pin from either of the power states

D2 or D3. For the UART channels, this wake-up request is

generated through the UART line RI (for power state D3),

and any modem line and the Serial Data In (for power state

D2). For the parallel port, this wake-up request is

generated through the multi-purpose IO pins, MIO(1:0).

Optional EEPROM:

The OX16PCI952 can be reconfigured from an external

MicrowireTM based EEPROM. However, this is not required

in many applications as default values are provided for

typical applications. Features available via the use of the

EEPROM include redefining device ID’s and vendor/sub-

vendor ID fields in the PCI header space, selectively

enabling/disabling interrupts, powerdown and wakeup

requests, and performing function access to pre-configure

the UARTs and the parallel port.

Multi-function device:

The OX16PCI952 is a multi-function device to enable users

to load individual device drivers for the internal serial ports

and the internal parallel port.

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