AM79C970A
AM79C970A is a high-speed Ethernet controller chip used for network communication.AM79C970A
AM79C970A is a high-speed Ethernet controller chip used for network communication.
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製造商零件號 # : AM79C970A
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包裝/封裝: QFP
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製造商: AMD
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產品分類 : Serial IO/Communication Controllers
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AM79C970A 數據表
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詳細說明
The AM79C970A is a single-chip Ethernet controller manufactured by Advanced Micro Devices (AMD). It is designed for use in network interface cards (NICs) and embedded systems that require Ethernet connectivity. The controller supports 10 Mbps and 100 Mbps Ethernet operation and is compliant with the IEEE 802.3 standards. It integrates a 32-bit PCI interface, making it suitable for connecting to a wide range of host systems. The AM79C970A features a built-in media access controller (MAC) that handles Ethernet frame encapsulation and transmission/reception. It also includes a physical layer interface that supports both 10Base-T and 100Base-TX media types. The controller supports various networking protocols, including TCP/IP, UDP, and IPX, making it versatile for different networking environments. It also features advanced power management capabilities to help reduce energy consumption in embedded systems.
主要特徵
- Integrated 10BASE-T Ethernet controller
- Supports ISA bus interface
- Provides 8KB SRAM buffer
- Supports IEEE 802.3 and 802.3u standards
- Operates at 8 or 16 MHz
- Includes AUI and MII interfaces
- Supports Wake-On-LAN functionality
- Low power consumption
應用
- LAN (Local Area Network) adapters
- Network interface cards (NICs)
- Workstations
- Servers
- Routers
- Gateways
- Switches
- Desktop computers
- Laptops
- Embedded systems
Specification Comparison
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is AM79C970A?
The AM79C970A is a single-chip 10/100 Mbps Ethernet controller with an integrated PCI interface, designed by Advanced Micro Devices (AMD). It is suitable for network interface card (NIC) applications, providing high-speed Ethernet connectivity for desktop and embedded systems.
How Does AM79C970A Work?
The AM79C970A operates as an Ethernet controller, facilitating the transfer of data packets between a host system and an Ethernet network. It integrates a PCI interface for easy connection to the host system and supports 10/100 Mbps data rates for fast and efficient Ethernet communication. The controller includes built-in features for packet handling, buffering, and error detection, ensuring reliable network connectivity.
How Many Pins does AM79C970A have and What are the Functions of the Pinout Configuration?
The AM79C970A is housed in a 100-pin PQFP (Plastic Quad Flat Package) package. The pinout configuration includes:
- PCI Interface: Pins for connecting to the host system via PCI.
- Network Interface: Pins for connecting to the Ethernet network.
- Control and Status Pins: Pins for control signals, status indicators, and power supply connections.
- Data and Address Pins: Pins for data and address communication with the host system.
- Interrupt Pins: Pins for interrupt signaling to the host system.
What are the Pros and Cons of AM79C970A?
Pros:
- Integrated PCI Interface: Simplifies integration into host systems with PCI bus architecture.
- High-Speed Ethernet: Supports 10/100 Mbps data rates for fast network connectivity.
- Built-in Features: Includes packet handling, buffering, and error detection, reducing external component count.
- Reliability: Ensures reliable Ethernet communication through robust error detection and correction mechanisms.
Cons:
- Complexity: Requires understanding of Ethernet protocols and network communication for effective usage.
- Size: The 100-pin PQFP package may require careful handling and board layout considerations.
- Power Consumption: May have higher power consumption compared to lower-speed Ethernet controllers.
Are There Any Equivalents/Alternatives to AM79C970A for Recommendation?
- The Realtek RTL8139D is a similar Ethernet controller with 10/100 Mbps support and PCI interface.
- Alternatives to the AM79C970A include the Broadcom BCM5708C and Intel 82545EM Ethernet controllers.
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