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DP83848IVVX-NOPB Detai LED explanation of pin function specifications and circuit principle instructions

The part number " DP83848IVVX/NOPB " is associated with Texas Instruments (TI). This part is a Physical Layer (PHY) Ethernet Transceiver and is typically used in networking applications to interface with Ethernet cables.

Package Information

The DP83848IVVX/NOPB comes in a VQFN (Very Thin Quad Flat No-lead) package, which has 48 pins.

Pin Function Table

Here is the Pin Function Table for the DP83848IVVX/NOPB, listing all 48 pins with their functions. The description is as detai LED as possible.

Pin Number Pin Name Pin Function 1 VSS Ground 2 VDD Power Supply (3.3V) 3 MDIO Management Data Input/Output (used for MII management interface) 4 MDC Management Data Clock (used for MII management interface) 5 RXD0 Receive Data 0 (Data bit 0 of received frame) 6 RXD1 Receive Data 1 (Data bit 1 of received frame) 7 RXD2 Receive Data 2 (Data bit 2 of received frame) 8 RXD3 Receive Data 3 (Data bit 3 of received frame) 9 RXDV Receive Data Valid (Indicates valid received data) 10 RXER Receive Error (Indicates if there is an error in received data) 11 TXD0 Transmit Data 0 (Data bit 0 of transmitted frame) 12 TXD1 Transmit Data 1 (Data bit 1 of transmitted frame) 13 TXD2 Transmit Data 2 (Data bit 2 of transmitted frame) 14 TXD3 Transmit Data 3 (Data bit 3 of transmitted frame) 15 TXEN Transmit Enable (Indicates when data is being transmitted) 16 TXER Transmit Error (Indicates if there is an error in transmitted data) 17 COL Collision Detect (Indicates collision during transmission) 18 CRS Carrier Sense (Indicates when carrier signal is detected) 19 RXCLK Receive Clock (Clock signal for data reception) 20 TXCLK Transmit Clock (Clock signal for data transmission) 21 REFCLK Reference Clock (External clock input for PHY) 22 RST_N Reset (Active low reset signal) 23 LINK_STATUS Link Status (Indicates the status of the Ethernet link) 24 MDIO_1 Management Data Input/Output (Second MDIO interface) 25 MDC_1 Management Data Clock (Second MDC interface) 26 GPIO0 General Purpose Input/Output 0 (Can be configured as input or output) 27 GPIO1 General Purpose Input/Output 1 (Can be configured as input or output) 28 VSS Ground 29 VDD Power Supply (3.3V) 30 INT Interrupt (Used for interrupt signaling) 31 LED1 LED Output 1 (Indicates link activity, can be used for diagnostic purposes) 32 LED2 LED Output 2 (Indicates power or speed status) 33 LED3 LED Output 3 (Can be used for custom status indications) 34 VSS Ground 35 VDD Power Supply (3.3V) 36 RGMII_RXC RGMII Receive Clock (Clock signal for RGMII reception) 37 RGMII_RXD0 RGMII Receive Data 0 (Data bit 0 for RGMII reception) 38 RGMII_RXD1 RGMII Receive Data 1 (Data bit 1 for RGMII reception) 39 RGMII_RXD2 RGMII Receive Data 2 (Data bit 2 for RGMII reception) 40 RGMII_RXD3 RGMII Receive Data 3 (Data bit 3 for RGMII reception) 41 RGMII_RXCTL RGMII Receive Control (Signals for reception in RGMII) 42 RGMII_TXC RGMII Transmit Clock (Clock signal for RGMII transmission) 43 RGMII_TXD0 RGMII Transmit Data 0 (Data bit 0 for RGMII transmission) 44 RGMII_TXD1 RGMII Transmit Data 1 (Data bit 1 for RGMII transmission) 45 RGMII_TXD2 RGMII Transmit Data 2 (Data bit 2 for RGMII transmission) 46 RGMII_TXD3 RGMII Transmit Data 3 (Data bit 3 for RGMII transmission) 47 RGMII_TXCTL RGMII Transmit Control (Signals for transmission in RGMII) 48 VSS Ground

20 FAQ for DP83848IVVX/NOPB

Q1: What is the function of the MDIO pin? A1: The MDIO pin is used for the Management Data Input/Output interface, allowing for communication between the PHY and the MAC (Media Access Controller) for configuration and monitoring.

Q2: What is the function of the RXD0 pin? A2: RXD0 is the first bit of the data stream being received by the PHY, indicating the first bit of the Ethernet frame.

Q3: What type of Ethernet does the DP83848IVVX/NOPB support? A3: The DP83848IVVX/NOPB supports 10/100 Mbps Ethernet.

Q4: What is the purpose of the RXDV pin? A4: The RXDV pin indicates whether the received data is valid. It signals when the PHY is receiving valid Ethernet frames.

Q5: What does the TXER pin indicate? A5: TXER indicates a transmission error, signaling that there was an issue during data transmission.

Q6: What is the function of the CRS pin? A6: The CRS pin signals whether the PHY is detecting carrier signal presence, which is important for collision detection in half-duplex Ethernet.

Q7: What does the RGMII interface provide? A7: RGMII (Reduced Gigabit Media Independent Interface) provides high-speed communication between the PHY and the MAC, supporting gigabit Ethernet speeds.

Q8: Can the DP83848IVVX/NOPB be used for 1 Gbps speeds? A8: No, the DP83848IVVX/NOPB supports only up to 100 Mbps Ethernet speeds, not 1 Gbps.

Q9: What is the role of the RESET pin? A9: The RESET pin is an active-low signal used to reset the entire PHY device.

Q10: What is the function of the LED pins? A10: The LED pins (LED1, LED2, LED3) are used to indicate the status of the network link, such as activity, speed, and power status.

Q11: What voltage is required for the VDD pin? A11: The VDD pin requires a 3.3V power supply.

Q12: How is the link status indicated? A12: The LINK_STATUS pin indicates the status of the Ethernet link, signaling if the PHY is connected to a network.

Q13: What is the purpose of the TXEN pin? A13: TXEN is used to indicate when data is being transmitted, enabling the MAC to transmit data onto the network.

Q14: What does the REFCLK pin do? A14: REFCLK is the reference clock input, providing the clock source for the PHY to operate.

Q15: What is the function of the RGMII pins? A15: The RGMII pins are used to transfer high-speed Ethernet data between the PHY and the MAC for gigabit speeds.

Q16: How is power saved in this device? A16: The DP83848IVVX/NOPB supports low-power operation modes for energy-efficient networking.

Q17: What is the maximum temperature range for the DP83848IVVX/NOPB? A17: The maximum operating temperature range is typically 0°C to 70°C.

Q18: What kind of errors can be detected by the RXER pin? A18: RXER can detect framing errors, CRC errors, and alignment errors in the received Ethernet data.

Q19: What is the function of the GPIO pins? A19: The GPIO pins are general-purpose pins that can be configured as input or output for custom applications.

Q20: How do I interface the DP83848IVVX/NOPB with a microcontroller? A20: The DP83848IVVX/NOPB can be interfaced with a microcontroller via the MDIO/MDC interface for configuration and control, and data can be transmitted using the MII or RGMII interface.

This explanation is based on the detailed functionality and design of the DP83848IVVX/NOPB, which is crucial for networking and Ethernet communication systems. Let me know if you need more in-depth details or have any other questions!