Datasheet > 微控制器和处理器 > 串行 IO/通信控制器> XR17C154

XR17C154

更新时间： 2024-11-22 22:29:43

品牌	Logo	应用领域
艾科嘉 - EXAR		PC
页数	文件大小	规格书
62页	679K
描述
5V PCI BUS QUAD UART

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XR17C154 数据手册

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XR17C154

5V PCI BUS QUAD UART

REV. 1.3.0

JUNE 2004

FEATURES

GENERAL DESCRIPTION

• High Performance Quad UART

The XR17C154¹(154) is a quad PCI Bus Universal

Asynchronous Receiver and Transmitter (UART) with

same package and pin-out as the Exar XR17x158 oc-

tal UARTs. The device is designed to meet today’s

32-bit PCI Bus and high bandwidth requirements in

communication systems. The global interrupt source

tion for all 4 channels to speed up interrupt parsing.

Each UART is independently controlled and has its

own 16C550 compatible 5G register set, transmit and

receive FIFOs of 64 bytes, fully programmable trans-

mit and receive FIFO trigger levels, transmit and re-

ceive FIFO level counters, automatic hardware flow

control with programmable hysteresis, automatic soft-

ware (Xon/Xoff) flow control, IrDA (Infrared Data As-

sociation) encoder/decoder, 8 multi-purpose defin-

able inputs/outputs, and a 16-bit general purpose tim-

er/counter.

• PCI Bus 2.2 Target Interface Compliance

• 5V PCI Bus Compliant up to 33MHz Clock

• 32-bit PCI Bus Interface with EEPROM Interface

• A Global Interrupt Source Register for all 4 UARTs

• Data Transfer in Byte, Word and Double-word

• Data Read/Write Burst Operation

• Each UART is independently Controlled with:

• 16C550 Compatible 5G (Fifth Gen Register Set

• 64-byte Transmit and Receive FIFOs

• Transmit and Receive FIFO Level Counters

• Automatic RTS/CTS or DTR/DSR Flow Control

• Automatic Xon/Xoff Software Flow Control

• Automatic RS485 Half-duplex Control Output

with 16 Selectable Turn-around Delay

• Infrared (IrDA 1.0) Data Encoder/Decoder

• Programmable Data Rate with Prescaler

• Up to 6.25 Mbps Serial Data Rate at 8X and 5V

• Eight Multi-Purpose Inputs/outputs

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

APPLICATIONS

• Remote Access Servers

• Ethernet Network to Serial Ports

• Network Management

• A General Purpose 16-bit Timer/Counter

• Sleep Mode with Automatic Wake-up Indicator

• Factory Automation and Process Control

• Point-of-Sale Systems

• Same Package and Pin-out as the XR17C158,

XR17D154 and XR17D158 UART

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

• 20x20x1.4mm 144-TQFP package

FIGURE 1. BLOCK DIAGRAM

5V VCC

GND

CLK (33MHz)

RST#

AD[31:0]

UART Channel 0

C/BE[3:0]#

FRAME#

IRDY#

64 Byte TX FIFO

TX0, RX0, DTR0#,

DSR0#, RTS0#,

CTS0#, CD0#, RI0#

UART

Regs

TX & RX

ENDEC

PCI Local

Bus

Interface

TRDY#

BRG

64 Byte RX FIFO

Device

Configuration

Registers

DEVSEL#

STOP#

INTA#

UART Channel 1

UART Channel 2

UART Channel 3

IDSEL

PERR#

SERR#

PAR

Configuration

Space

Registers

TX3, RX3, DTR3#,

DSR3#, RTS3#,

CTS3#, CD3#, RI3#

16-bit

Timer/Counter

Multi-purpose

EECK

EEDI

EEDO

EECS

MPIO0- MPIO7

EEPROM

Interface

Inputs/Outputs

XTAL1

XTAL2

Crystal Osc/Buffer

ENIR

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...62

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与XR17C154相关器件

型号	品牌	获取价格	描述	数据表
XR17C154_05	EXAR	获取价格	5V PCI BUS QUAD UART
XR17C154CV	EXAR	获取价格	5V PCI BUS QUAD UART
XR17C154IV	EXAR	获取价格	5V PCI BUS QUAD UART
XR17C158	EXAR	获取价格	5V PCI BUS OCTAL UART
XR17C158CV	EXAR	获取价格	5V PCI BUS OCTAL UART
XR17C158CV-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
XR17C158IV	EXAR	获取价格	5V PCI BUS OCTAL UART
XR17D152	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D152CM	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D152CM-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 0.78125MBps, CMOS, PQFP100, 14 X 14 MM, 1 MM HEIGHT,

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