The LAN8710A-EZC-TR is a product from Microchip Technology. It is an integrated Ethernet transceiver that supports 10/100 Mbps Ethernet communication.
Regarding the packaging and detai LED pin functions, here is a breakdown of its pinout, pin functions, and circuit principles:
LAN8710A-EZC-TR Pinout Overview
The LAN8710A-EZC-TR typically comes in a QFN (Quad Flat No-lead) package. The most common package for this part is a 48-pin QFN.
Here is the 48-pin pinout description in detail:
Pin Function Description Table
Pin Number Pin Name Pin Function Description 1 VDDIO Power Supply Pin: Power input for the I/O interface , typically 3.3V. 2 TXD0 Transmit Data (0): Transmit data bit 0 for Ethernet transmission. 3 TXD1 Transmit Data (1): Transmit data bit 1 for Ethernet transmission. 4 TXEN Transmit Enable: Controls the transmission of Ethernet data, enables transmission when active. 5 CRS_DV Carrier Sense/Receive Data Valid: Indicates whether the carrier is present and valid data is being received. 6 RXD0 Receive Data (0): Receive data bit 0 from the Ethernet connection. 7 RXD1 Receive Data (1): Receive data bit 1 from the Ethernet connection. 8 RXDV Receive Data Valid: Indicates when the received data is valid. 9 RXER Receive Error: Indicates an error condition for received data. 10 MDIO Management Data I/O: Used for communication between the PHY and the MAC (Management Data Interface). 11 MDC Management Data Clock : Clock signal for the MDIO interface. 12 REF_CLK Reference Clock: Provides the clock reference for Ethernet transmission. 13 VDDIO Power Supply Pin: Same as pin 1, additional I/O supply. 14 RESET Reset: Active low reset for the device. 15 LED1 LED Indicator (1): Indicates Ethernet link activity. 16 LED2 LED Indicator (2): Indicates Ethernet speed (e.g., 100 Mbps vs. 10 Mbps). 17 GND Ground Pin: Provides ground for the system. 18 SENSE Sensing Pin: Used to sense the presence of the network link. 19 VDDIO Power Supply Pin: Same as pins 1 and 13, provides supply for the I/O interface. 20 RX_CLK Receive Clock: Clock signal derived from the received Ethernet data. 21 AVDD Analog Power Supply: Provides power to the analog circuitry. 22 AVSS Analog Ground: Ground for the analog circuits. 23 RX_ER Receive Error: Error indication for received frames. 24 TX_CLK Transmit Clock: Provides the clock for the transmission of data. 25 TX_CLK Transmit Clock (Alternate): Secondary clock output for transmission. 26 TXD2 Transmit Data (2): Transmit data bit 2 for Ethernet transmission. 27 TXD3 Transmit Data (3): Transmit data bit 3 for Ethernet transmission. 28 RX_CLK Receive Clock (Alternate): Secondary clock input for receiving data. 29 RXD2 Receive Data (2): Receive data bit 2 for Ethernet reception. 30 RXD3 Receive Data (3): Receive data bit 3 for Ethernet reception. 31 MIIRXCLK MII Receive Clock: Clock signal for the Media Independent Interface (MII) reception. 32 MIIRXERR MII Receive Error: Indicates an error in the MII receive data stream. 33 MIIRXDV MII Receive Data Valid: Data valid signal for MII reception. 34 MIITXCLK MII Transmit Clock: Clock signal for the MII transmit data. 35 MIITXEN MII Transmit Enable: Enable signal for MII transmission. 36 MII_TXD0 MII Transmit Data (0): MII transmit data bit 0. 37 MII_TXD1 MII Transmit Data (1): MII transmit data bit 1. 38 MII_TXD2 MII Transmit Data (2): MII transmit data bit 2. 39 MII_TXD3 MII Transmit Data (3): MII transmit data bit 3. 40 INT Interrupt Output: Interrupt output indicating specific device events. 41 LED1 LED Indicator (1): Indicates Ethernet link status. 42 LED2 LED Indicator (2): Indicates Ethernet activity (such as speed). 43 REF_CLK Reference Clock: Clock reference for Ethernet operation. 44 RGMII_TXD0 RGMII Transmit Data (0): RGMII transmit data line. 45 RGMII_TXD1 RGMII Transmit Data (1): RGMII transmit data line. 46 RGMII_TXD2 RGMII Transmit Data (2): RGMII transmit data line. 47 RGMII_TXD3 RGMII Transmit Data (3): RGMII transmit data line. 48 GND Ground Pin: Provides system ground.FAQ (Frequently Asked Questions)
1. What is the power supply voltage for the LAN8710A-EZC-TR?Answer: The LAN8710A-EZC-TR requires a power supply of 3.3V for the I/O and analog circuits.
2. How do I reset the LAN8710A-EZC-TR?Answer: The reset function is triggered by pulling the RESET pin low, which resets the device to its initial state.
3. What is the purpose of the TXD0 and TXD1 pins?Answer: The TXD0 and TXD1 pins are used to transmit Ethernet data, where TXD0 is bit 0 and TXD1 is bit 1 of the transmitted data.
4. What is the significance of RXD0 and RXD1?Answer: These pins, RXD0 and RXD1, are used to receive Ethernet data, with RXD0 being bit 0 and RXD1 being bit 1 of the received data.
5. How does the MDIO pin function in the LAN8710A-EZC-TR?Answer: The MDIO pin serves as the data I/O line for the management interface, allowing communication between the PHY and the MAC layer.
6. What is the role of the MDC pin?Answer: The MDC pin is used to provide the clock signal for the MDIO interface, synchronizing data transmission.
7. What does the LED1 pin indicate?Answer: The LED1 pin is used to indicate the Ethernet link activity status. It can be used to display whether the device is properly connected to a network.
8. Can I use the SENSE pin to detect network connection?Answer: Yes, the SENSE pin can be used to detect the presence of a network link.
9. What does TXEN do?Answer: The TXEN pin controls the enabling of data transmission on the TXD0, TXD1, TXD2, TXD3 pins.
10. What happens when RXDV is active?Answer: When RXDV (Receive Data Valid) is active, it indicates that the received data on the RXD0, RXD1, RXD2, RXD3 pins is valid.
11. How do I check the Ethernet speed using the LAN8710A-EZC-TR?Answer: The LED2 pin can be used to indicate the speed of the Ethernet connection, such as 100 Mbps or 10 Mbps.
12. What is the purpose of the REF_CLK pin?Answer: The REF_CLK pin provides the clock reference used for Ethernet transmission.
13. What is the GND pin for?Answer: The GND pin serves as the ground connection for the system.
14. How do I enable data transmission on the LAN8710A-EZC-TR?Answer: Data transmission is enabled by setting the TXEN pin to active and providing valid data on the TXD0, TXD1, TXD2, TXD3 pins.
15. Can I use the RX_CLK pin for other functions?Answer: The RX_CLK pin is dedicated to providing the clock signal for receiving Ethernet data and should not be used for other functions.
16. How is the INT pin used?Answer: The INT pin is an interrupt output that signals specific events or conditions within the device.
17. How do I connect the RGMII interface for high-speed Ethernet?Answer: The RGMII interface can be used with the RGMIITXD0, RGMIITXD1, RGMIITXD2, RGMIITXD3 pins for high-speed data transmission.
18. What are the AVDD and AVSS pins?Answer: AVDD provides power to the analog section of the device, while AVSS serves as the ground for the analog circuitry.
19. How can I monitor the error conditions in the data stream?Answer: The RXER pin is used to monitor receive errors in the data stream.
20. How do I initiate a link test or loopback mode?Answer: Link test or loopback modes can be triggered using specific configurations in the device's management interface (MDIO/MDC).
This detailed overview includes the pin functions, key FAQ details, and usage information for the LAN8710A-EZC-TR transceiver, including how each pin should be used in various network configurations.
