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參數資料
| 型號： | XR16C872 |
| 廠商： | Exar Corporation |
| 英文描述： | Dual UART with 1284 Parallel Port and Plug-and-Play（PnP） Controller(雙通用異步接收器/發送器（帶1284雙向并行端口和即插即用控制器）) |
| 中文描述： | 雙UART）與1284并行端口，插頭插即用（PnP）功能控制器（雙通用異步接收器/發送器（帶1284雙向并行端口和即插即用控制器） |
| 文件頁數： | 1/60頁 |
| 文件大小： | 314K |
| 代理商： | XR16C872 |
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EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
www@exar.com
Rev. P1.00
Preliminary
XR16C872
Dual UART with 1284 Parallel Port
and Plug-and-Play Controller
June 1999-1
Plug and Play ISA Bus Specification Compliant
- Auto Configuration
- Direct Connection, Needing no External Buffers
- Resource Data in External 4K EEPROM
- 10-Interrupts IRQ3-7, IRQ9-12, IRQ15
Manual Configuration for Standard COM1-COM-4
and LPT1-LPT2
IEEE 1284 Compliant
- Bidirectional Host Port
- Level-II Electrical Interface, Needing no
External Transceivers
- Standard Centronics/ECP/EPP Mode
- 16-byte FIFO in ECP mode
Dual UART Software Compatible with 16C550
128-Byte Transmit and Receiver FIFOs Reduce
CPU Interrupt
FIFO Counters in Transmitter and Receiver
Automatic RTS/CTS Flow Control with Hysteresis
to Increase Data Throughput
FEATURES
DESCRIPTION
The XR16C872
1
(872) is a dual universal asynchronous
receiver and transmitter (UART) with a 1284 bi-direc-
tional parallel port and ISA Bus Plug-and-Play (PnP)
interface. The PnP interface supports auto configura-
tion for desktop and embedded PC computers. The
host bus interface can also be configured to manually
support standard PC addresses COM1-4 and LPT1-2.
The parallel port is compatible to IEEE 1284 specifica-
tion and supports Compatible Centronics, Extended
Capability (ECP) and Enhanced Parallel Port (EPP)
protocols. The UARTs are software compatible to
industry standard 16C550 and include enhanced fea-
tures of 128 bytes of transmit and receive FIFOs,
programmable transmit and receive FIFO trigger lev-
els, transmit and receive FIFO counters, IrDA (Infrared
IrDA Infrared Pulse Shaping Encoder/Decoder for
up to 115.2Kbps Data Rate
Up to 460.8 Kbps Standard Serial Data Rate
+5V and +3.3V Operation
100-pin Quad Flat Package (14x20mm)
Reference PC ISA Card Design Available
Windows
2
95,
98 and NT4.0 Device Drivers are
Available
APPLICATIONS
Multi-function PC/ISA Bus Card with RS-232/
RS-422/RS-485 Interface and Printer/parallel Port
Embedded Systems
Portable Infrared Wireless Systems
High-speed Bidirectional Parallel Port
High-speed Serial Ports
Data Association) encoder/decoder, automatic RTS/
CTS hardware flow control with selectable hysteresis,
and automatic software (Xon/Xoff) flow control. On
board status registers provide interrupt priorities, re-
ceive data errors and modem status. Each channel has
a programmable baud rate generator to provide data
rates up to 460.8Kbps. The bi-directional parallel port
can be configured as a general purpose input/output
interface or connected to a printer or portable storage
devices. The 872 operates on a single +5V and +3.3
power supply. It is available in a small 100-pin QFP
package and offers commercial and industrial tem-
perature ranges. The chip is fabricated in an advanced
CMOS process to reduce power consumption.
Notes:
1
Covered by U.S. patent number 5,649,122 and patent pending.
2
Windows is a trademark of Microsoft Corp.
ORDERING INFORMATION
Part Number
XR16C872CQ
XR16C872IQ
Package
100-Lead QFP
100-Lead QFP
Operating Temperature
0° C to + 70° C
-40° C to + 85° C
相關PDF資料 |
PDF描述 |
|---|---|
| XR16L2450 | 2.25V TO 5.5V DUART |
| XR16L2450IJ | 97-3108A20-29S-KIT |
| XR16L2450IM | 2.25V TO 5.5V DUART |
| XR16L2550IJ | LOW VOLTAGE DUART WITH 16-BYTE FIFO |
| XR16L2550IL | LOW VOLTAGE DUART WITH 16-BYTE FIFO |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XR16C872CQ | 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER |
| XR16C872IQ | 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER |
| XR16L2450 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART |
| XR16L2450_05 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART |
| XR16L2450IJ | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART |
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