|
|
PDF 21041-PB Data sheet ( Hoja de datos )
| Número de pieza | 21041-PB | |
| Descripción | PCI Ethernet LAN Controller | |
| Fabricantes | Digital | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de 21041-PB (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
|
No Preview Available !
Digital Semiconductor 21041
m PCI Ethernet LAN Controller
t4U.co Product Brief
February 1996
Shee Description
ata The Digital Semiconductor 21041 PCI Ethernet LAN Controller is a single-chip
master, direct memory access (DMA) Ethernet LAN controller with a direct inter-
.D face to the PCI local bus. It supports full-duplex operation, and its unique design
w is optimized to reduce the host bus utilization.
w The 21041 is highly integrated to support 10BASE5, 10BASE-T, or 10BASE2
w network connections. It is a high-performance device designed for PCI-based sys-
tems. The 21041 provides a direct interface to a 64KB, 128KB or 256KB boot
mROM. It supports both PCI 3.3-volt and 5.0-volt signaling environments and a
power-down mode for energy conservation. The 21041 is supported by a variety
oof software drivers and therefore offers a complete solution for all the leading net-
.cworking environments.
Features
U• Offers a single-chip Ethernet control-
ler for PCI local bus:
t4- Provides glueless connection to PCI
bus
- Contains an onchip integrated attach-
ement unit interface (AUI) port and a
e10BASE-T transceiver
• Implements the same architecture as
hthe 21040 to allow use of unified driv-
ers*
S• Supports full-duplex operation and
IEEE 802.3 autonegotiation algorithm
taof full-duplex and half-duplex net-
work environments*
a• Provides upgradable boot ROM (flash
or EEPROM) interface of 64KB,
128KB, or 256KB*
.D• Contains MicroWire EEPROM inter-
face for Ethernet ID address and, op-
tionally, other system parameters*
w - Implements automatic loading of
subsystem vendor ID and subsystem
w ID from serial ROM to distinguish
between different adapters based on
w mthe 21041 chip*
.co• Provides PCI clock speed up to
33 MHz, with no wait states on PCI
Umaster operation
et4• Enables powerful onchip DMA with
eprogrammable burst sizes up to 32
hlongwords, providing for low CPU
utilization
taS• Implements unique, patent-pending in-
atelligent arbitration between DMA
channels preventing underflow or
.Doverflow and optimized for full-
wwwduplex operation
• Incorporates a 16-bit, general-purpose
timer*
• Contains two large (256-byte) inde-
pendent receive and transmit FIFOs
• Supports either big-endian or little-
endian byte ordering
• Implements JTAG compatible test-
access port with boundary-scan pins
• Provides full support of IEEE 802.3,
ANSI 8802-3, and Ethernet standards
• Offers a unique, patented solution to
Ethernet capture-effect problem
• Contains a variety of flexible address
filtering modes
• Supports seven LEDs: Receive, Re-
ceive Address Match, Transmit,
Transmit Jabber, Collision, LinkPass,
and Polarity*
• Enables automatic detection and cor-
rection of 10BASE-T receive polarity
• Enables full autosensing between
10BASE-T, 10BASE2, and 10BASE5
ports*
• Provides external and internal loop-
back capability
• Contains 3.3-V CMOS device which
interfaces to 5.0-V or 3.3-V logic
• Provides a software-controllable
power-saving mode*
• Supports PCI 5.0-V and 3.3-V signal-
ing environments*
*21041 feature enhancements that are
not available in the 21040.
1 page  
Characteristics
Characteristic
Power supply
Operating temperature
Storage temperature range
Power dissipation @ Vdd = 3.3 V and
PCI clock frequency = 33 MHz
Package
Specification
Vdd = 3.3 V
Vdd_clamp = 5 V or 3.3 V
0°C to 70°C
–55°C min, +125°C max
0.4 W
120-pin PQFP
For More Information
To learn more about the availability of
the Digital Semiconductor 21041 PCI
Ethernet LAN Controller and evalu-
ation board kit, contact your local
semiconductor distributor. To learn
more about Digital Semiconductor’s
product portfolio, contact the Digital
Semiconductor Information Line:
1-800-332-2717
1-800-332-2515 (TTY)
Outside North America, call:
+1-508-568-6868
While Digital believes the information in this
publication is correct as of the date of publica-
tion, it is subject to change without notice.
© Digital Equipment Corporation 1996.
All rights reserved.
Printed in U.S.A.
EC–QAWVB–TE
Digital, PATHWORKS, Digital Semiconductor,
and the DIGITAL logo are trademarks of
Digital Equipment Corporation.
Digital Semiconductor is a Digital Equipment
Corporation business.
IEEE is a trademark of The Institute of Electri-
cal and Electronics Engineers, Inc.; Microsoft is
a registered trademark and Windows NT is a
trademark of Microsoft Corporation; NetWare
is a registered trademark of Novell, Inc.; UNIX
is a registered trademark in the United States
and other countries licensed exclusively through
X/Open Company Ltd.; MicroWire is a regis-
tered trademark of BankAmerica Corporation;
SCO is a trademark of Santa Cruz Operation,
Inc.
All other trademarks and registered trademarks
are the property of their respective owners.
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet 21041-PB.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 21041-PB | PCI Ethernet LAN Controller | Digital |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |