Datasheet > XR17V258IV-0A-EVB

XR17V258IV-0A-EVB

更新时间： 2024-11-23 22:59:35

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EVAL BOARD FOR XR17V258 144LQFP

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XR17V258

66MHZ PCI BUS OCTAL UART WITH POWER MANAGEMENT SUPPORT

AUGUST 2010

REV. 1.0.2

GENERAL DESCRIPTION

• Factory Automation and Process Control

• Instrumentation

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

• Point-of-Sale Systems

The XR17V258 (V258) is a single chip 8-channel

66MHz PCI (Peripheral Component Interconnect)

UART (Universal Asynchronous Receiver and

Transmitter)

solution,

optimized

for

higher

FEATURES

performance and lower power. The V258 device with

its fifth generation register set is designed to meet the

• High performance 32-bit 66MHz PCI UART

• PCI 3.0 compliance

• PCI power management rev. 1.1 compliance

• EEPROM interface for PCI configuration

• 3.3V supply with 5V tolerant non-PCI (serial) inputs

• Data read/write burst operation

• Global interrupt register for all eight UART channels

• Up to 8 Mbps serial data rate

• Eight multi-purpose inputs/outputs

high

bandwidth

and

power

management

requirements for multi-serial communication ports for

system administration and management. The 32-bit

66MHz PCI interface is compliant with PCI 3.0 and

PCI power management revision 1.1 specifications.

The device provides an upgrade path for Exar’s

33MHz 5V and Universal PCI UART family of

products in a 144-pin LQFP package.

The V258 consists of eight independent UART

channels, each with set of configuration and

enhanced registers, 64 bytes of Transmit (TX) and

Receive (RX) FIFOs, and a fractional Baud Rate

Generator (BRG). A global interrupt source register

provides a complete interrupt status indication for all

8-channels to speed up interrupt parsing. The V258

device operates at 33/66MHz and features fully

programmable TX and RX FIFO level triggers,

automatic hardware and software flow control, and

automatic RS-485 half duplex direction control output

for software and hardware design simplification.

• A 16-bit general purpose timer/counter

• Sleep mode with wake-up Indicator

• Eight independent UART channels controlled with

■ 16C550 compatible register set

■ 64-byte TX and RX FIFOs with level counters

and programmable trigger levels

■ Fractional baud rate generator

■ Automatic RTS/CTS or DTR/DSR hardware

flow control with programmable hysteresis

■ Automatic Xon/Xoff software flow control

■ RS-485 half duplex direction control output

with selectable turn-around delay

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

APPLICATIONS

• Remote Access Servers

• Storage Network Management

■ Infrared (IrDA 1.0) data encoder/decoder

■ Programmable data rate with prescaler

FIGURE 1. BLOCK DIAGRAM OF THE XR17V258

U AR T C hannel 0

64-b yte TX FIFO

T X[7:0]

RX[7:0]

AD[31 :0]

UA RT

C/BE#[3:0]

Re gs

& RX

EN D E C

PAR

BR G 64-b yte RX FIFO

FR AME#

RTS#[7:0]

TR D Y#

PC I L o cal

IR D Y#

U AR T C hannel 1

U AR T C hannel 2

U AR T C hannel 3

U AR T C hannel 4

U AR T C hannel 5

U AR T C hannel 6

U AR T C hannel 7

DTR#[7:0]

C TS#[7:0]

Bu s

STOP#

Interface

D EVSEL#

ID SEL#

Global

C onfiguration

R egisters

D SR#[7:0]

33/66MH z CLK

R ST#

P ERR #

SERR #

IN TA#

D CD #[7:0]

R I#[7:0]

Configuration

Space

Registers

PME#

EN IR

M PIO [7:0]

Multi-purpose

Inputs/Outputs

16-bit

T ime r/Counte r

EECK

EE D I

X TAL1/C LK

X TAL2

E EPR OM

Interface

C rystal Osc/B uffer

EED O

EECS

TMR C K

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

12 3 4 5 6 7...69

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与XR17V258IV-0A-EVB相关器件

型号	品牌	获取价格	描述	数据表
XR17V258IV-F	EXAR	获取价格	Serial I/O Controller, 8 Channel(s), 1MBps, CMOS, PQFP144, 20 X 20 MM, 1.40 MM HEIGHT, ROH
XR17V258IVTR-F	EXAR	获取价格	Serial I/O Controller, 8 Channel(s), 1MBps, CMOS, PQFP144, 20 X 20 MM, 1.40 MM HEIGHT, ROH
XR17V352	EXAR	获取价格	HIGH PERFORMANCE DUAL PCI EXPRESS UART
XR17V352IB-0A-EVB	ETC	获取价格	EVAL BOARD FOR XR17V352 113BGA
XR17V352IB113-F	EXAR	获取价格	HIGH PERFORMANCE DUAL PCI EXPRESS UART
XR17V354	EXAR	获取价格	HIGH PERFORMANCE QUAD PCI-EXPRESS UART
XR17V354IB176-F	EXAR	获取价格	HIGH PERFORMANCE QUAD PCI-EXPRESS UART
XR17V358	EXAR	获取价格	HIGH PERFORMANCE OCTAL PCI EXPRESS UART
XR17V358IB-0A-EVB	EXAR	获取价格	HIGH PERFORMANCE OCTAL PCI EXPRESS UART
XR17V358IB176-F	EXAR	获取价格	HIGH PERFORMANCE OCTAL PCI EXPRESS UART

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