參數(shù)資料
型號： XR17L152
廠商： Exar Corporation
英文描述： 3.3V PCI BUS DUAL UART
中文描述： 3.3V的PCI總線雙UART
文件頁數(shù)： 1/55頁
文件大小： 318K
代理商： XR17L152
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
á
DISCONTINUED
XR17L152
3.3V PCI BUS DUAL UART
AUGUST 2003
REV. 1.1.0
GENERAL DESCRIPTION
The XR17L152
1
(L152) 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
requirements 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 definable inputs/outputs,
and a 16-bit general purpose timer/counter.
N
OTE
:
1 Covered by U.S. Patents #5,649,122, #5,949,787
APPLICATIONS
Network Management
Factory Automation and Process Control
Ethernet Network to Serial Ports
Point-of-Sale Systems
Multi serial ports RS-232/RS-422/RS-485 Cards
FEATURES
High Performance DUART
PCI Bus 2.2 Target Interface Compliance
3.3 V PCI Bus Compliant up to 33 MHz Clock
5 Volt Tolerant Serial Inputs
32-bit PCI Bus Interface with EEPROM Interface
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 Half-duplex Control Output with
Selectable Turn-around Delay (0 to 15 bit-times)
Infrared (IrDA 1.0) Data Encoder/Decoder
Programmable Data Rate with Prescaler
Up to 3.125 Mbps Data Rate at 8X Sampling
Eight Multi-Purpose Inputs/outputs
A General Purpose 16-bit Timer/Counter
Sleep Mode with Automatic Wake-up Indicator
Same package and pin-out as XR17C152 and
XR17D152 (14x14x1.0 mm TQFP)
F
IGURE
1. B
LOCK
D
IAGRAM
TMRCK
Device
Configuration
Registers
XTAL1
XTAL2
Crystal Osc/Buffer
TX0, RX0, DTR0#,
DSR0#, RTS0#,
CTS0#, CD0#, RI0#
PCI Local
Bus
Interface
CLK
RST#
AD[31:0]
C/BE[3:0]#
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
INTA#
PAR
IDSEL
PERR#
SERR#
Configuration
Space
Registers
MPIO0- MPIO7
Multi-pu.
Inputs/Outputs
TX1, RX1, DTR1#,
DSR1#, RTS1#,
CTS1#, CD1#, RI1#
16-bit
Timer/Counter
EECK
EEPROM
Interface
3.3V VCC
GND
ENIR
EN485#
UART Channel 0
64 Byte TX FIFO
64 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
UART Channel 1
64 Byte TX FIFO
64 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
*5V Tolerance for non-PCI Inputs
相關(guān)PDF資料
PDF描述
XR17L152CM 3.3V PCI BUS DUAL UART
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17L152CM 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART
XR17L152IM 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART
XR17L154 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS QUAD UART
XR17L154CV 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm
XR17L154IV 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS QUAD UART
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