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XR17D154IV Datasheet

  • XR17D154IV

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

  • 840.48KB

  • 69頁

  • EXAR   EXAR

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xr
JUNE 2004
XR17D154
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
REV. 1.2.0
GENERAL DESCRIPTION
The XR17D154
1
(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鈥檚 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.
N
OTE
:
1 Covered by U.S. Patents #5,649,122, #5,949,787
FEATURES
鈥?/div>
High Performance Quad 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 4 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>
APPLICATIONS
鈥?/div>
Universal Form Factor PCI Bus Add-in Card
鈥?/div>
Remote Access Servers
鈥?/div>
Ethernet Network to Serial Ports
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
3.3V or 5V
(PCI VI/O
Power Supply)
CLK (33M Hz)
RST#
AD[31:0]
C/BE[3:0]#
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
INTA#
IDSEL
PERR#
SERR#
PAR
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
鈥?/div>
Eight Multi-Purpose Inputs/outputs
鈥?/div>
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 XR17D158,
XR17C158 and
TQFP)
XR17C154 (20x20x1.4mm 144-
VCC (Core
Logic)
GND
UART Channel 0
UART
Regs
64 Byte TX FIFO
TX & RX
IR
ENDEC
TX0, RX0, DTR0#,
DSR0#, R TS0#,
CTS0#, CD0#, RI0#
PCI Local
Bus
Interface
Device
Configuration
Registers
BRG
64 Byte R X FIFO
UART Channel 1
UART Channel 2
Configuration
Space
Registers
TX3, RX3, DTR3#,
DSR3#, R TS3#,
CTS3#, CD3#, RI3#
UART Channel 3
EECK
EEDI
EEDO
EECS
ENIR
EEPROM
Interface
16-bit
Tim er/Counter
M ulti-purpose
.
Inputs/Outputs
Crystal Osc/Buffer
M PIO0- M PIO7
XTAL1
XTAL2
TMR CK
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
鈥?/div>
(510) 668-7000
鈥?/div>
FAX (510) 668-7017
鈥?/div>
www.exar.com

XR17D154IV 產(chǎn)品屬性

  • XR17D154

  • 60

  • 集成電路 (IC)

  • 接口 - UART（通用異步接收器/發(fā)送器）

  • -

  • *

  • 4，QUART

  • 64 字節(jié)

  • RS485

  • 3.3V，5V

  • -

  • 是

  • 是

  • 是

  • 是

  • -

  • 表面貼裝

  • 144-LQFP

  • 144-LQFP（20x20）

  • 托盤

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