KSZ8721BLI

The KSZ8721BLI is a fully integrated 10/100Base-TX/FX Ethernet physical-layer transceiver designed for use in embedded systems and applications. It combines the physical layer and features an RMII interface for easy connection to Ethernet MAC controllers.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• LED0: Link/Activity Indicator
• LED1: Speed Indicator
• TXD1-/TXD1+: Transmit Data Minus/Plus
• TX_EN: Transmit Enable
• RXD0-/RXD0+: Receive Data Minus/Plus
• RX_DV: Receive Data Valid
• COL: Collision Detection
• CRS: Carrier Sense
• MDC: Management Data Clock
• MDIO: Management Data I/O
• RESET: Reset Pin
• VDDIO: I/O Power Supply
• VDDD: Digital Core Power Supply
• VDDA: Analog Core Power Supply
• GND: Ground
• XT1/REFCLK: Crystal Connection or Reference Clock

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the KSZ8721BLI Ethernet transceiver for a visual representation.

Key Features

• Integrated Ethernet Transceiver: Combines the physical layer for 10/100 Mbps Ethernet connectivity.
• RMII Interface: Features a Reduced Media Independent Interface for easy connection to Ethernet MAC controllers.
• LED Indicators: Includes Link/Activity and Speed LED indicators for network status monitoring.
• Reset Pin: Allows for easy device reset and configuration.
• Wide Power Supply Range: Supports multiple power supply options for flexible system integration.
• Low Power Consumption: Operates with low power consumption for energy-efficient applications.

Note: For detailed technical specifications, please refer to the KSZ8721BLI datasheet.

Application

• Embedded Systems: Ideal for use in embedded systems requiring Ethernet connectivity.
• Industrial Automation: Suitable for industrial automation applications with Ethernet communication needs.
• Networking Devices: Used in various networking devices for wired Ethernet connections.

Functionality

The KSZ8721BLI is a versatile Ethernet transceiver that provides reliable 10/100 Mbps connectivity for embedded and industrial applications. Its integrated design and RMII interface simplify system integration and operation.

Usage Guide

• Power Supply: Connect the VDDIO, VDDD, and VDDA pins to their respective power sources as per the datasheet.
• LED Monitoring: Monitor the LED indicators for network status and diagnostics.
• Reset Function: Utilize the RESET pin for device reset and configuration management.

Frequently Asked Questions

Q: What is the purpose of the RMII interface in the KSZ8721BLI?
A: The RMII interface simplifies the connection between the Ethernet transceiver and MAC controllers, enabling easy integration in embedded systems.

Q: Can the KSZ8721BLI operate with a single power supply?
A: Yes, the KSZ8721BLI supports a wide power supply range and can operate effectively with a single power supply.