AM79C940JC/W AMD [Advanced Micro Devices], AM79C940JC/W Datasheet
![no-image](/images/no-image-200.jpg)
AM79C940JC/W
Manufacturer Part Number
AM79C940JC/W
Description
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C940JCW.pdf
(144 pages)
- Current page: 1 of 144
- Download datasheet (2Mb)
Am79C940
Media Access Controller for Ethernet (MACE™)
DISTINCTIVE CHARACTERISTICS
GENERAL DESCRIPTION
The Media Access Controller for Ethernet (MACE) chip
is a CMOS VLSI device designed to provide flexibility
in customized LAN design. The MACE device is specif-
ically designed to address applications where multiple
I/O peripherals are present, and a centralized or sys-
tem specific DMA is required. The high speed, 16-bit
synchronous system interface is optimized for an exter-
nal DMA or I/O processor system, and is similar to
many existing peripheral devices, such as SCSI and
serial link controllers.
Integrated Controller with Manchester
encoder/decoder and 10BASE-T transceiver
and AUI port
Supports IEEE 802.3/ANSI 8802-3 and Ethernet
standards
84-pin PLCC and 100-pin PQFP Packages
80-pin Thin Quad Flat Pack (TQFP) package
available for space critical applications such as
PCMCIA
Modular architecture allows easy tuning to
specific applications
High speed, 16-bit synchronous host system
interface with 2 or 3 cycles/transfer
Individual transmit (136 byte) and receive (128
byte) FlFOs provide increase of system latency
and support the following features:
— Automatic retransmission with no FIFO
— Automatic receive stripping and transmit
— Automatic runt packet rejection
— Automatic deletion of collision frames
— Automatic retransmission with no FIFO
Direct slave access to all on board
configuration/status registers and transmit/
receive FlFOs
Direct FIFO read/write access for simple
interface to DMA controllers or l/O processors
reload
reload
padding (individually programmable)
FINAL
The MACE device is a slave register based peripheral.
All transfers to and from the system are performed
using simple memory or I/O read and write commands.
In conjunction with a user defined DMA engine, the
MACE chip provides an IEEE 802.3 interface tailored
to a specific application. Its superior modular architec-
ture and versatile system interface allow the MACE
device to be configured as a stand-alone device or
as a connectivity cell incorporated into a larger,
integrated system.
Arbitrary byte alignment and little/big endian
memory interface supported
Internal/external loopback capabilities
External Address Detection Interface (EADI )
for external hardware address filtering in
bridge/router applications
JTAG Boundary Scan (IEEE 1149.1) test access
port interface for board level production test
Integrated Manchester Encoder/Decoder
Digital Attachment Interface (DAI ) allows
by-passing of differential Attachment Unit
Interface (AUI)
Supports the following types of network
interface:
— AUI to external 10BASE2, 10BASE5 or
— DAI port to external 10BASE2, 10BASE5,
— General Purpose Serial Interface (GPSI) to
— Internal 10BASE-T transceiver with
Sleep mode allows reduced power consump-
tion for critical battery powered applications
5 MHz-25 MHz system clock speed
Support for operation in industrial temperature
range (–40 C to +85 C) available in all three
packages
10BASE-F MAU
10BASE-T, 10BASE-F MAU
external encoding/decoding scheme
automatic selection of 10BASE-T or AUI port
Publication# 16235
Issue Date: May 2000
Rev: E Amendment/0
Related parts for AM79C940JC/W
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AMD-751AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-751ACAMD-751-TM System Controller Revision Guide
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-751](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-751AMD-751-TM System Controller Revision Guide
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-X5-133SFZ](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-X5-133SFZAm5X86? Microprocessor Family
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-8131BLC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Hyper Transport PCI-X Tunnel
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-8111AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
HyperTransport I/O Hub
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-640AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
System Controller
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-K6](/images/no-image3.png)
Part Number:
Description:
AMD-K6 Processor
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
![AMD-K6-2E/400AFR](/images/no-image3.png)
Part Number:
Description:
AMD-K6™-2E Embedded Processor
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
![AMD-8132BLCT](/images/manufacturer_photos/0/0/44/amd__advanced_micro_devices__tmb.jpg)
Part Number:
Description:
Manufacturer:
AMD (ADVANCED MICRO DEVICES)
Datasheet:
![AMD-K6-IIIE+550ACR](/images/manufacturer_photos/0/0/44/amd__advanced_micro_devices__tmb.jpg)
Part Number:
Description:
Manufacturer:
AMD (ADVANCED MICRO DEVICES)
Datasheet:
![AMD-766AC](/images/no-image3.png)
Part Number:
Description:
Peripheral Bus Controller
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
Related keywords
- AM79C940JC/W datasheet
- AM79C940JC/W data sheet
- AM79C940JC/W pdf datasheet
- AM79C940JC/W component
- AM79C940JC/W part
- AM79C940JC/W distributor
- AM79C940JC/W RoHS
- AM79C940JC/W datasheet download