Datasheet > 微控制器和处理器 > 串行 IO/通信控制器> XR17D152

XR17D152

更新时间： 2024-11-22 21:55:39

品牌	Logo	应用领域
艾科嘉 - EXAR		PC
页数	文件大小	规格书
68页	726K
描述
UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART

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XR17D152 数据手册

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XR17D152

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

JUNE 2004

REV. 1.2.0

FEATURES

GENERAL DESCRIPTION

• High Performance Dual PCI UART

The XR17D152¹(D152) is a monolithic dual PCI Bus

Universal Asynchronous Receiver and Transmitter

(UART) in Exar’s PCI Bus UART family. The device is

designed to meet today’s 32-bit PCI Bus and high

bandwidth requirement in communication systems.

The global interrupt source register provides a

complete interrupt status indication for both channels

to speed up interrupt parsing. Each UART is

independently controlled and has its own 16C550

compatible 5G (Fifth Generation) register set,

transmit and receive FIFOs of 64 bytes, fully

programmable transmit and receive FIFO trigger

levels, transmit and receive FIFO level counters,

automatic hardware flow control with programmable

hysteresis, automatic software (Xon/Xoff) flow

control, automatic half-duplex control output, wireless

IrDA (Infrared Data Association) infrared encoder/

decoder, 8 multi-purpose inputs/outputs and a 16-bit

general purpose timer/counter.

• Universal PCI Bus Buffers - Auto-sense 3.3V and

5V Operation

• 32-bit PCI Bus 2.3 Target Signalling Compliance

• A Global Interrupt Source Register for both 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

■ Automatic RS485 HDX Control Output with

Selectable Turn-around Delay

■ Infrared (IrDA 1.0) Data Encoder/Decoder

■ Programmable Data Rate with Prescaler

■ Up to 6.25 Mbps Data Rate at 8X Sampling

• Eight Multi-Purpose Inputs/outputs

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

APPLICATIONS

• Universal PCI Bus Add-in Card

• Network Management

• A General Purpose 16-bit Timer/Counter

• Sleep Mode with Automatic Wake-up

• EEPROM Interface for PCI Configuration

• Factory Automation and Process Control

• Ethernet Network to Serial Ports

• Point-of-Sale Systems

• Same package and pin-out as the XR17C152

(14x14x1.0 mm TQFP)

• Multi serial ports RS-232/RS-422/RS-485 Cards

FIGURE 1. BLOCK DIAGRAM

3.3V or 5V

(PCI VI/O

Power Supply)

VCC

(Core Logic)

GND

CLK (33 MHz)

UART Channel 0

RST#

AD[31:0]

64 Byte TX FIFO

TX0, RX0, DTR0#,

UART

C/BE[3:0]#

FRAME#

DSR0#, RTS0#,

CTS0#, CD0#, RI0#

Regs

ENDEC

& RX

PCI Local

IRDY#

BRG

64 Byte RX FIFO

Device

Configuration

Registers

Bus

TRDY#

Interface

DEVSEL#

STOP#

INTA#

UART Channel 1

TX1, RX1, DTR1#,

64 Byte TX FIFO

UART

IDSEL

PERR#

SERR#

PAR

DSR1#, RTS1#,

CTS1#, CD1#, RI1#

Regs

ENDEC

& RX

BRG

64 Byte RX FIFO

Configuration

Space

Registers

16-bit

Timer/Counter

Multi-purpose

EECK

EEDI

MPIO0- MPIO7

EEPROM

Interface

Inputs/Outputs

EEDO

EECS

XTAL1

XTAL2

Crystal Osc/Buffer

ENIR

EN485#

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...68

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与XR17D152相关器件

型号	品牌	获取价格	描述	数据表
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,
XR17D152IM	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D154	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
XR17D154CV	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
XR17D154CV-0A-EVB	EXAR	获取价格	EVAL BOARD FOR XR17D154 144TQFP
XR17D154CV-F	EXAR	获取价格	IC UART PCI BUS QUAD 144LQFP
XR17D154CVTR-F	EXAR	获取价格	IC UART QUAD PCI 3.3V/5V 144SQFP
XR17D154IV	EXAR	获取价格	UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
XR17D154IV-F	EXAR	获取价格	IC UART PCI BUS QUAD 144LQFP

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