參數(shù)資料
型號(hào)： AM79C973
廠商： Advanced Micro Devices, Inc.
英文描述： PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
中文描述： PCnet⑩快速三單芯片10/100 Mbps的PCI以太網(wǎng)控制器集成PHY
文件頁(yè)數(shù)： 2/304頁(yè)
文件大?。?/td> 2092K
代理商： AM79C973
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2
Am79C973/Am79C975
P R E L I M I N A R Y
I
Look-Ahead Packet Processing (LAPP) data
handling technique reduces system overhead
by allowing protocol analysis to begin before
the end of a receive frame
I
Includes Programmable Inter Packet Gap (IPG)
to address less network aggressive MAC
controllers
I
Offers the Modified Back-Off algorithm to
address the
Ethernet Capture Effect
I
IEEE 1149.1-compliant JTAG Boundary Scan
test access port interface and NAND tree test
mode for board-level production connectivity
test
I
Compatible with the existing PCnet Family
driver/diagnostic software
I
Software compatible with AMD PCnet Family
and LANCE
/C-LANCE
register and
descriptor architecture
I
Available in 160-pin PQFP and 176-pin TQFP
packages
I
Advanced +3.3 V CMOS process technology for
low power operation
GENERAL DESCRIPTION
The Am79C973 and Am79C975 controllers are single-
chip 32-bit full- duplex, 10/100-Megabit per second
(Mbps) fully integrated PCI-to-Wire Fast Ethernet sys-
tem solution, designed to address high-performance
system application requirements. They are flexible bus
mastering device that can be used in any application,
including network-ready PCs and bridge/router de-
signs. The bus master architecture provides high data
throughput and low CPU and system bus utilization.
The Am79C973 and Am79C975 controllers are fabri-
cated with advanced low-power 3.3-V CMOS process
to provide low operating current for power sensitive ap-
plications.
The third generation Am79C973 and Am79C975 Fast
Ethernet controllers also have several enhancements
over their predecessors, the Am79C971 and
Am79C972 devices. Besides integrating the complete
10/100 Physical Layer (PHY) interface, they further re-
duce system implementation cost by integrating the
SRAM buffers on chip.
The Am79C973 and Am79C975 controllers contain 12-
kilobyte (Kbyte) buffers, the largest of their class in 10/
100 Mbps Ethernet controllers. The large internal buff-
ers are fully programmable between the RX and TX
queues for optimal performance.
The Am79C973 and Am79C975 controllers are also
compliant with PC98/PC99 and Wired for Management
specifications. They fully support Microsoft’s OnNow
and ACPI specifications, which are backward compati-
ble with Magic Packet technology and compliant with
the PCI Bus Power Management Interface Specifica-
tion by supporting the four power management states
(D0, D1, D2, and D3), the optional PME pin, and the
necessary configuration and data registers.
The Am79C973 and Am79C975 controllers are com-
plete Ethernet nodes integrated into a single VLSI de-
vice. It contains a bus interface unit, a Direct Memory
Access (DMA) Buffer Management Unit, an ISO/IEC
8802-3 (IEEE 802.3)- compliant Media Access Control-
ler (MAC), a large Transmit FIFO and a large Receive
FIFO, and an IEEE 802.3-compliant 10/100 Mbps PHY.
The integrated 10/100 PHY unit of the Am79C973 and
Am79C975 controllers implement the complete physi-
cal layer for 10BASE-T and the Physical Coding Sub-
layer (PCS), Physical Medium Attachment (PMA), and
Physical Medium Dependent (PMD) functionality for
100BASE-TX, including MLT-3 encoding/decoding. It
also supports 100BASE-FX operation by providing a
Pseudo-ECL (PECL) interface for direct connection to
a fiber optic transceiver module. The internal 10/100
PHY implements Auto-Negotiation for twisted-pair
(10T/100TX) operation by using a modified 10BASE-T
link integrity test pulse sequence as defined in the
IEEE 802.3u specification. The Auto-Negotiation func-
tion automatically configures the controller to operate
at the maximum performance level supported across
the network link.
The Am79C975 controller also implements a Serial
Management Interface in addition to the advanced
management features offered with the Am79C973 con-
troller. The Serial Management Interface is based on
the industry standard Inter-IC (I
2
C) and System Man-
agement Bus (SMBus) specifications and enables a
system to communicate with another network station
for remote monitoring and alerting of local system man-
agement parameters and events. This simple yet pow-
erful Serial Management Interface is capable of
communicating within the system and over the network
during normal operation or in low-power modes, even if
the device is not initialized or set up for transmit or re-
ceive operation by the network software driver.
The 32-bit multiplexed bus interface unit provides a di-
rect interface to the PCI local bus, simplifying the
design of an Ethernet node in a PC system. The
Am79C973 and Am79C975 controllers provide the
complete interface to an Expansion ROM or Flash de-
vice allowing add-on card designs with only a single
load per PCI bus interface pin. With their built-in sup-
port for both little and big endian byte alignment, the
相關(guān)PDF資料
PDF描述
AM79C973KCW PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C975KCW PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973VCW PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C975VCW PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C976 PCnet-PRO⑩ 10/100 Mbps PCI Ethernet Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C973/75 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Board Layout Considerations for the Am79C973/75 Network Interface? - (PDF)
AM79C973/AM79C975 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Am79C973/Am79C975 - PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973AVC\\W 制造商:Advanced Micro Devices 功能描述:
AM79C973AVC\W 制造商:Advanced Micro Devices 功能描述:
AM79C973BKC 制造商:Advanced Micro Devices 功能描述:79C973BKC
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