Datasheet > 微控制器和处理器 > 串行 IO/通信控制器> XR17D158

XR17D158

更新时间： 2024-11-25 22:34:47

品牌	Logo	应用领域
艾科嘉 - EXAR		PC
页数	文件大小	规格书
72页	1666K
描述
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART

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XR17D158 数据手册

XR17D158

UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART

NOVEMBER 2004

REV. 1.2.1

FEATURES

GENERAL DESCRIPTION

• High Performance Octal PCI UART

• Universal PCI Bus Buffers - Auto-sense 3.3V or 5V

Operation

The XR17D158 (D158) is an octal PCI Bus

Universal Asynchronous Receiver and Transmitter

(UART) with support for PCI Bus universal VIO

buffers in the same package and pin-out as the

XR17C158, XR17C154 and XR17D154. The device

is designed to meet the 32-bit PCI Bus and high

bandwidth requirement in communication systems. A

global interrupt source register provides a complete

interrupt status indication for all 8 channels to speed

up interrupt parsing. Each UART has its own 16C550

compatible set of configuration registers, transmit and

receive FIFOs of 64 bytes, fully programmable

transmit and receive FIFO level trigger levels,

transmit and receive FIFO level counters, automatic

RTS/CTS or DTR/DSR hardware flow control with

programmable hysteresis levels, automatic software

(Xon/Xoff) flow control, IrDA (Infrared Data

• 32-bit PCI Bus 2.3 Target Signalling Compliance

• A Global Interrupt Source Register for all 8 UARTs

• Data Transfer in Byte, Word and Double-word

• Data Read/Write Burst Operation

• Each UART is independently controlled with:

■ 16C550 Compatible 5G Register Set

■ 64-byte Transmit and Receive FIFOs

■ Transmit and Receive FIFO Level Counters

■ Programmable TX and RX FIFO Trigger Level

■ Automatic RTS/CTS or DTR/DSR Flow Control

■ Automatic Xon/Xoff Software Flow Control

■ RS485 HDX Control Output with Selectable

Association) encoder/decoder,

inputs/outputs and a 16-bit general purpose timer/

counter.

multi-purpose

Turn-around Delay

■ Infrared (IrDA 1.0) Data Encoder/Decoder

■ Programmable Data Rate with Prescaler

■ Up to 6.25 Mbps Serial Data Rate

NOTE: 1 Covered by U.S. Patents #5,649,122 and #5,949,787

APPLICATIONS

• Eight Multi-Purpose Inputs/outputs

• Universal Form Factor PCI Bus Add-in Card

• Remote Access Servers

• Network Management

• Factory Automation and Process Control

• Point-of-Sale Systems

• Multi-port RS-232/RS-422/RS-485 Cards

• A General Purpose 16-bit Timer/counter

• Sleep Mode with Automatic Wake-up

• EEPROM Interface for PCI Configuration

• Same Package and Pin-out as the XR17C158,

XR17C154 and XR17D154

FIGURE 1. BLOCK DIAGRAM

5V VCC

(Core Logic)

3.3V or 5V

VIO

GND

UART Channel 0

CLK

64 Byte TX FIFO

TX0, RX0, DTR0#,

UART

Regs

RST#

AD[31:0]

DSR0#, RTS0#,

CTS0#, CD0#, RI0#

TX & RX

ENDEC

BRG

64 Byte RX FIFO

C/BE[3:0]#

FRAME#

IRDY#

UART Channel 1

PCI Local

Bus

Interface

TRDY#

UART Channel 2

UART Channel 3

UART Channel 4

UART Channel 5

Device

Configuration

Registers

DEVSEL#

STOP#

INTA#

IDSEL

PERR#

SERR#

PAR

UART Channel 6

Configuration

Space

TX7, RX7, DTR7#,

DSR7#, RTS7#,

UART Channel 7

Registers

CTS7#, CD7#, RI7#

16-bit

Timer/Counter

Multi-purpose

Inputs/Outputs

EECK

EEDI

EEDO

EECS

MPIO0- MPIO7

EEPROM

Interface

XTAL1

XTAL2

Crystal Osc/Buffer

TMRCK

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com

12 3 4 5 6 7...72

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与XR17D158相关器件

型号	品牌	获取价格	描述	数据表
XR17D158_05	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158CV	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158IV	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158IV-F	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158IVTR-F	EXAR	获取价格	Serial I/O Controller, 8 Channel(s), 0.78125MBps, CMOS, PQFP144, 20 X 20 MM, 1.40 MM HEIGH
XR17L152	EXAR	获取价格	3.3V PCI BUS DUAL UART
XR17L152CM	EXAR	获取价格	3.3V PCI BUS DUAL UART
XR17L152IM	EXAR	获取价格	3.3V PCI BUS DUAL UART
XR17L154	EXAR	获取价格	3.3V PCI BUS QUAD UART
XR17L154CV	EXAR	获取价格	3.3V PCI BUS QUAD UART

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