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XR17D158IV Datasheet

  • XR17D158IV

  • UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART

  • 72頁

  • EXAR   EXAR

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xr
NOVEMBER 2004
XR17D158
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
REV. 1.2.1
GENERAL DESCRIPTION
The XR17D158
1
(D158) is an octal PCI Bus
Universal Asynchronous Receiver and Transmitter
(UART) with support for PCI Bus universal VIO
buffers in the same package and pin-out as the
XR17C158, XR17C154 and XR17D154. The device
is designed to meet the 32-bit PCI Bus and high
bandwidth requirement in communication systems. A
global interrupt source register provides a complete
interrupt status indication for all 8 channels to speed
up interrupt parsing. Each UART has its own 16C550
compatible set of configuration registers, transmit and
receive FIFOs of 64 bytes, fully programmable
transmit and receive FIFO level trigger levels,
transmit and receive FIFO level counters, automatic
RTS/CTS or DTR/DSR hardware flow control with
programmable hysteresis levels, 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.
N
OTE
:
1 Covered by U.S. Patents #5,649,122 and #5,949,787
FEATURES
鈥?/div>
High Performance Octal PCI UART
鈥?/div>
Universal PCI Bus Buffers - Auto-sense 3.3V or 5V
Operation
鈥?/div>
32-bit PCI Bus 2.3 Target Signalling Compliance
鈥?/div>
A Global Interrupt Source Register for all 8 UARTs
鈥?/div>
Data Transfer in Byte, Word and Double-word
鈥?/div>
Data Read/Write Burst Operation
鈥?/div>
Each UART is independently controlled with:
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
APPLICATIONS
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
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 Serial Data Rate
鈥?/div>
Universal Form Factor PCI Bus Add-in Card
鈥?/div>
Remote Access Servers
鈥?/div>
Network Management
鈥?/div>
Factory Automation and Process Control
鈥?/div>
Point-of-Sale Systems
鈥?/div>
Multi-port RS-232/RS-422/RS-485 Cards
F
IGURE
1. B
LOCK
D
IAGRAM
鈥?/div>
Eight Multi-Purpose Inputs/outputs
鈥?/div>
A General Purpose 16-bit Timer/counter
鈥?/div>
Sleep Mode with Automatic Wake-up
鈥?/div>
EEPROM Interface for PCI Configuration
鈥?/div>
Same Package and Pin-out as the XR17C158,
XR17C154 and XR17D154
3.3V or 5V
VIO
CLK
RST#
AD[31:0]
C/BE[3:0]#
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
INTA#
IDSEL
PERR#
SERR#
PAR
UART Channel 0
UART
Regs
BRG
64 Byte TX FIFO
TX & RX
IR
ENDEC
5V VCC
(Core Logic)
GND
TX0, RX0, DTR0#,
DSR0#, RTS0#,
CTS0#, CD0#, RI0#
64 Byte RX FIFO
UART Channel 1
PCI Local
Bus
Interface
Device
Configuration
Registers
UART Channel 2
UART Channel 3
UART Channel 4
UART Channel 5
Configuration
Space
Registers
UART Channel 6
UART Channel 7
TX7, RX7, DTR7#,
DSR7#, RTS7#,
CTS7#, CD7#, RI7#
MPIO0- MPIO7
XTAL1
XTAL2
TMRCK
EECK
EEDI
EEDO
EECS
EEPROM
Interface
16-bit
Timer/Counter
Multi-purpose
.
Inputs/Outputs
Crystal Osc/Buffer
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
鈥?/div>
(510) 668-7000
鈥?/div>
FAX (510) 668-7017
鈥?/div>
www.exar.com

XR17D158IV 產(chǎn)品屬性

  • XR17D158

  • 60

  • 集成電路 (IC)

  • 接口 - UART（通用異步接收器/發(fā)送器）

  • -

  • *

  • 8

  • 64 字節(jié)

  • RS485

  • 3.3V，5V

  • -

  • 是

  • 是

  • 是

  • 是

  • -

  • 表面貼裝

  • 144-LQFP

  • 144-LQFP（20x20）

  • 托盤

XR17D158IV相關(guān)型號PDF文件下載

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