參數(shù)資料
型號(hào)： XR17D154
廠商： Exar Corporation
英文描述： UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
中文描述： 通用（3.3V和5V）PCI總線四的UART
文件頁(yè)數(shù)： 1/69頁(yè)
文件大?。?/td> 836K
代理商： XR17D154
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
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XR17D154
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
JUNE 2004
REV. 1.2.0
GENERAL DESCRIPTION
The XR17D1541 (D154) is a quad PCI Bus Universal
Asynchronous Receiver and Transmitter (UART) with
same package and pin-out as the Exar XR17C158,
XR17D158 and XR17C154. 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 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 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, IrDA (Infrared Data Association) encoder/
decoder, 8 multi-purpose inputs/outputs and a 16-bit
general purpose timer/counter.
NOTE: 1 Covered by U.S. Patents #5,649,122, #5,949,787
APPLICATIONS
Universal Form Factor PCI Bus Add-in Card
Remote Access Servers
Ethernet Network to Serial Ports
Network Management
Factory Automation and Process Control
Point-of-Sale Systems
Multi-port RS-232/RS-422/RS-485 Cards
FEATURES
High Performance Quad PCI UART
Universal PCI Bus Buffers - Auto-sense 3.3V or 5V
Operation
32-bit PCI Bus 2.3 Target Signalling Compliance
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 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 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
Eight Multi-Purpose Inputs/outputs
General Purpose 16-bit Timer/Counter
Sleep Mode with Automatic Wake-up
EEPROM Interface for PCI Configuration
Same package and pin-out as the XR17D158,
XR17C158 and
XR17C154 (20x20x1.4mm 144-
TQFP)
FIGURE 1. BLOCK DIAGRAM
TMR CK
Device
Configuration
Registers
XTAL1
XTAL2
Crystal Osc/Buffer
UART Channel 0
TX0, RX0, DTR0#,
DSR0#, R TS0#,
CTS0#, CD0#, RI0#
PCI Local
Bus
Interface
Configuration
Space
Registers
.
M PIO0- M PIO7
Multi-purpose
Inputs/Outputs
TX3, RX3, DTR3#,
DSR3#, R TS3#,
CTS3#, CD3#, RI3#
UART Channel 3
UART Channel 2
UART Channel 1
16-bit
Tim er/Counter
EECK
EEDI
EEDO
EECS
EEPROM
Interface
64 Byte TX FIFO
64 Byte R X FIFO
BRG
IR
ENDE C
TX & RX
UART
Regs
VCC (Core
Logic)
GND
ENIR
CLK (33M Hz)
RST#
AD[31:0]
C/BE[3:0]#
PAR
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
IDSEL
PERR#
SERR#
INTA#
3.3V or 5V
(PCI VI/O
Power Supply)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17D154CV 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR17D154CV-0A-EVB 功能描述:界面開(kāi)發(fā)工具 Supports D154 144 ld TQFP, PCI Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR17D154CV-F 功能描述:UART 接口集成電路 3.3V-5V 64B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR17D154CVTR-F 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 3.3V/5V 144-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR17D154CVTR-F
XR17D154IV 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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