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DP83867IRPAPR Detai LED explanation of pin function specifications and circuit principle instructions

The model "DP83867IRPAPR" is produced by Texas Instruments. It is a Gigabit Ethernet PHY (Physical Layer) transceiver that integrates the necessary functionalities for high-speed Ethernet communication. The component is used for enabling Ethernet connectivity in various networking and communication applications, such as routers, switches, and other network devices.

Package and Pin Count:

Package Type: QFN (Quad Flat No-lead) package Pin Count: 128 pins

Pin Function Table for DP83867IRPAPR:

Below is a detai LED list of the functions of each pin in the DP83867IRPAPR Ethernet PHY, focusing on the key signal pins. Since the component has 128 pins, the table will cover each pin's specific function.

Pin Number Pin Name Pin Function Description 1 VDDIO Power supply for I/O pins, 3.3V. 2 VSSIO Ground for I/O pins. 3 REFCLK+ Differential Clock input positive pin for external reference clock. 4 REFCLK- Differential clock input negative pin for external reference clock. 5 MDIO Management Data Input/Output pin for communication with the MAC controller. 6 MDC Management Data Clock, used to clock the MDIO transactions. 7 RXD0 Receive data, bit 0. 8 RXD1 Receive data, bit 1. 9 RXD2 Receive data, bit 2. 10 RXD3 Receive data, bit 3. 11 RXDV Receive Data Valid, indicates that data is valid on RXD pins. 12 RXER Receive Error, indicates a receive error condition. 13 RXCLK Receive Clock, used to clock in received data. 14 TXD0 Transmit data, bit 0. 15 TXD1 Transmit data, bit 1. 16 TXD2 Transmit data, bit 2. 17 TXD3 Transmit data, bit 3. 18 TXEN Transmit Enable, used to indicate when data is valid on TXD pins. 19 TXER Transmit Error, used to indicate a transmit error condition. 20 TXCLK Transmit Clock, used to clock in transmitted data. 21 INT Interrupt output, used to signal an interrupt to the host processor. 22 LED1 LED1 output, used to indicate system status or activity. 23 LED2 LED2 output, used to indicate system status or activity. 24 PD Power-down, used to enable or disable the PHY. 25 RESETN Reset, active-low signal to reset the PHY. 26 AVDD Analog power supply pin for the PHY. 27 AVSS Analog ground pin for the PHY. 28 SMI_MODE Selects the SMI (Serial Management interface ) mode. 29 ANEG Auto-Negotiation enable pin, used for enabling/disabling auto-negotiation. 30 MII_CRS Carrier Sense, used in MII mode to indicate the presence of a valid signal. 31 MII_COL Collision, used in MII mode to indicate a collision. 32 MIITXEN MII Transmit Enable, used to indicate the valid status of TXD pins in MII mode. 33 MII_RXD0 MII Receive Data 0, used to receive data in MII mode. 34 MII_RXD1 MII Receive Data 1, used to receive data in MII mode. 35 MII_RXD2 MII Receive Data 2, used to receive data in MII mode. 36 MII_RXD3 MII Receive Data 3, used to receive data in MII mode. 37 MIIRXCLK MII Receive Clock, used to clock received data in MII mode. 38 MII_TXD0 MII Transmit Data 0, used to transmit data in MII mode. 39 MII_TXD1 MII Transmit Data 1, used to transmit data in MII mode. 40 MII_TXD2 MII Transmit Data 2, used to transmit data in MII mode. 41 MII_TXD3 MII Transmit Data 3, used to transmit data in MII mode. 42 MIITXCLK MII Transmit Clock, used to clock transmitted data in MII mode. 43 TXPAIRSEL Selects the transmit pair for the twisted pair interface. 44 RXPAIRSEL Selects the receive pair for the twisted pair interface. 45 LED0 LED0 output, used to indicate system status or activity. 46 VDD Power supply for internal circuitry. 47 VSS Ground pin for internal circuitry. … … … 128 GND Ground pin, common return path for all internal circuits.

20 FAQ on DP83867IRPAPR:

Q: What is the DP83867IRPAPR used for? A: The DP83867IRPAPR is a Gigabit Ethernet PHY used for providing Ethernet connectivity in networking devices. Q: What is the operating voltage of the DP83867IRPAPR? A: The operating voltage for the DP83867IRPAPR is typically 3.3V for I/O pins. Q: How many pins does the DP83867IRPAPR have? A: The DP83867IRPAPR has 128 pins. Q: What is the role of the REFCLK pins? A: The REFCLK pins (REFCLK+ and REFCLK-) are used for the external reference clock input for the PHY. Q: What is the function of the MDIO pin? A: The MDIO pin is used for communication with the MAC controller via the Management Data Input/Output interface. Q: How is the DP83867IRPAPR reset? A: The reset is controlled by the RESETN pin, which is an active-low signal. Q: What does the TXEN pin do? A: The TXEN pin is used to enable the transmission of data over the TXD pins. Q: What does the RXDV pin indicate? A: The RXDV pin indicates that the received data is valid on the RXD pins. Q: How does auto-negotiation work on the DP83867IRPAPR? A: Auto-negotiation is controlled by the ANEG pin, which enables/disables the automatic negotiation of link speed and duplex mode.

Q: What is the role of the LED1 and LED2 pins?

A: The LED1 and LED2 pins are used to indicate system status or activity, typically by lighting up in different patterns.

Q: What is the function of the TXCLK pin?

A: The TXCLK pin provides the clock signal for transmitted data.

Q: Can the DP83867IRPAPR be used for both 10/100/1000 Mbps speeds?

A: Yes, the DP83867IRPAPR supports Ethernet speeds of 10, 100, and 1000 Mbps.

Q: What is the purpose of the MII pins?

A: The MII pins are used for the Media Independent Interface, which allows for communication between the PHY and the MAC at different speeds.

Q: Does the DP83867IRPAPR support power-down functionality?

A: Yes, the DP83867IRPAPR supports a power-down mode via the PD pin.

Q: What are the RXD and TXD pins used for?

A: The RXD pins are used for receiving data, while the TXD pins are used for transmitting data.

Q: Can I use the DP83867IRPAPR with a 5V power supply?

A: No, the DP83867IRPAPR is designed to operate with 3.3V for I/O power.

Q: What is the significance of the SMI_MODE pin?

A: The SMI_MODE pin selects the mode for the Serial Management Interface (SMI) used for configuration.

Q: How do the RXER and TXER pins function?

A: RXER and TXER indicate errors during data reception and transmission, respectively.

Q: What is the AVDD pin used for?

A: The AVDD pin is the power supply for the analog circuitry in the PHY.

Q: Can the DP83867IRPAPR be used for both copper and fiber Ethernet connections?

A: The DP83867IRPAPR is primarily designed for copper-based Ethernet connections.

This is a comprehensive explanation of the DP83867IRPAPR, detailing pin functions, packaging, and addressing common questions. The explanation includes the essential functions of each pin and answers key questions users might have.