OX16PCI958

更新时间： 2024-09-30 03:44:43

品牌	Logo	应用领域
OXFORD		PC
页数	文件大小	规格书
46页	411K
描述
Octal UART with PCI Interface

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数据手册

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OX16PCI958 数据手册

OX16PCI958 DATA SHEET

Octal UART

with PCI Interface

FEATURES

•

Efficient 32-bit, 33 /₃MHz multi-function, target-only

PCI controller, compliant to PCI Local Bus

Specification 3.0 & PCI Power Management

Specification 1.1

•

Driver-facilitated DSR/DTR & Xon/Xoff handshaking

5-,6-,7- & 8-bit data framing

1, 1.5 or 2 stop bits

UART enhancements:

•

Eight UARTs fully software compatible with 16C550-

type devices

•

Clock prescaler allows more baud rate options

Readable FIFO levels & tuneable trigger levels

improve device driver performance

•

Compatible with existing 16C550/450 device drivers

PCI 2.1, 2.2, 2.3 & 3.0 compliant

•

Programmable “synchronization factor” allows

baud rates up to fclock/4

Supports both 5.0-V & 3.3-V PCI signalling

32-byte deep FIFO per transmitter & receiver

Baud rates up to 4.125 Mega-baud (using a

16.5 MHz input clock).

Extensions to standard register set are

implemented in a safe, easy-to-use way

•

Low-power design with separate power management

control

•

Clock can be provided from crystal oscillator or

external clock source

•

Operating temp. range : 0 C—70 C

160-pin QFP package

Automated out-of-band flow control using

CTS#/RTS#

Operation via IO or memory mapping

Support for multiple wake-up events

Configuration data is held in a small, low-cost serial

Microwire compatible EEPROM

DESCRIPTION

The OX16PCI958 contains eight UARTs (Universal

interrupt service requests from the UART, for example by

using the prioritised interrupt identification register,

readable FIFO levels, and tuneable FIFO trigger levels.

Asynchronous Receiver-Transmitters) and

a host

interface suitable for direct connection to a PCI bus.

Once installed and configured by the host OS, it provides

an eight-byte programming interface to each UART. The

UARTs are fully software-compatible with 16C550

devices. The device can be configured to fit the

requirements of RS232 or RS422 applications.

The UARTs convert between RS232-format serial data

on separate transmit and receive lines, and byte-wide I/O

writes and reads on the host interface. Malformed

incoming serial data is flagged along with the data in the

receive FIFO. The state of the UART can be found at

any time by reading status registers, and modem control

(handshaking output) lines can be individually controlled.

The internal transmitter and receiver logic runs at a

programmable synchronisation factor of 4x, 8x, or 16x

the serial baud rate. This internal clock is generated by

dividing a reference clock by an integer divisor from 1 to

(2 –1). In this way the UART can accommodate a serial

rate of up to 4 125 000 baud (using a 16.5 MHz input

clock).

The OX16PCI958 provides a host interface that can be

directly connected to a PCI bus. It responds to

configuration accesses, and once configured it also

responds to I/O and memory accesses for control of the

UART. The data for configuration space is read from a

small external serial EEPROM at start-up, together with

information on how the OX16PCI958 should be set up.

Although polled-mode operation is possible, the UART

will usually be operated on a host-interrupt basis. The

interrupt system is designed to allow efficient handling of

External—Free Release

Oxford Semiconductor Ltd.

Oxford Semiconductor 2005

OX16PCI958 DS-0022—Nov 2005

Part No. OX16PCI958—PQAG

25 Milton Park, Abingdon, Oxon, OX14 4SH, UK

Tel: +44 (0)1235 824900

12 3 4 5 6 7...46

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与OX16PCI958相关器件

型号	品牌	获取价格	描述	数据表
OX16PCI958-PQAG	OXFORD	获取价格	Octal UART with PCI Interface
OX-1700-BAE-107	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAE-108	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAE-208	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAE-258	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAE-508	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAJ-107	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAJ-108	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAJ-208	VECTRON	获取价格	Oven Controlled Crystal Oscillator
OX-1700-BAJ-258	VECTRON	获取价格	Oven Controlled Crystal Oscillator

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