RTL8111F-CG Detai LED explanation of pin function specifications and circuit principle instructions
The model "RTL8111F-CG" corresponds to a Realtek network interface controller (NIC) chip, which is part of the RTL8111 family. This chip is commonly used in Ethernet networking for devices like computers, motherboards, and networking equipment.
Package and Pinout
Package Type: The RTL8111F-CG typically comes in a LQFP (Low-profile Quad Flat Package) package. Pin Count: The exact number of pins depends on the specific model and its configuration, but generally, the RTL8111F comes in a 48-pin LQFP package.Here’s a detai LED explanation of the pin functions of the RTL8111F-CG chip in a 48-pin LQFP configuration:
Pin No. Pin Name Pin Function Description 1 VDD Power supply (3.3V) for the chip. 2 VSS Ground pin for the chip. 3 TXD0 Transmit Data 0 (TX line for Ethernet transmission). 4 TXD1 Transmit Data 1 (TX line for Ethernet transmission). 5 TXD2 Transmit Data 2 (TX line for Ethernet transmission). 6 TXD3 Transmit Data 3 (TX line for Ethernet transmission). 7 RXD0 Receive Data 0 (RX line for Ethernet reception). 8 RXD1 Receive Data 1 (RX line for Ethernet reception). 9 RXD2 Receive Data 2 (RX line for Ethernet reception). 10 RXD3 Receive Data 3 (RX line for Ethernet reception). 11 MDIO Management Data Input/Output (used for communication with the PHY layer). 12 MDC Management Data Clock (used for communication with the PHY layer). 13 CRS_DV Carrier Sense / Data Valid (used for signaling carrier detection and data validity). 14 RX_ER Receive Error (indicates if there’s a receive error). 15 COL Collision signal (indicates a collision on the network). 16 LED0 Link status LED signal (connect to an LED to show connection status). 17 LED1 Activity status LED signal (connect to an LED to show activity). 18 PHY_RESET PHY Reset pin (used to reset the PHY layer). 19 PHY_INT PHY Interrupt (interrupt signal from the PHY layer). 20 TX_CLK Transmit Clock (provides the clock for transmitting data). 21 RX_CLK Receive Clock (provides the clock for receiving data). 22 IRQ Interrupt request signal (used to indicate interrupts to the host). 23 WAKEONLAN Wake-on-LAN signal (used to wake the system from a low power state). 24 RST Reset pin for the chip. 25 SMI System Management Interface (used to interface with the system management bus). 26 SCL Serial Clock Line for SMBus (used in communication with the system via SMBus). 27 SDA Serial Data Line for SMBus (used in communication with the system via SMBus). 28 MII_MDIO MII Management Data Input/Output (used for communicating with the MII interface). 29 MII_MDC MII Management Data Clock (used for MII interface communication). 30 MII_CRS MII Carrier Sense (indicates if the carrier is sensed on the network). 31 MIIRXCLK MII Receive Clock (provides clock for MII reception). 32 MIITXCLK MII Transmit Clock (provides clock for MII transmission). 33 GND Ground pin for the chip. 34 NC No connection (reserved or not used). 35 NC No connection (reserved or not used). 36 NC No connection (reserved or not used). 37 NC No connection (reserved or not used). 38 VSS Ground pin for the chip. 39 VDD Power supply (3.3V) for the chip. 40 VDD Power supply (3.3V) for the chip. 41 VSS Ground pin for the chip. 42 VDD Power supply (3.3V) for the chip. 43 VSS Ground pin for the chip. 44 VDD Power supply (3.3V) for the chip. 45 VSS Ground pin for the chip. 46 VDD Power supply (3.3V) for the chip. 47 VSS Ground pin for the chip. 48 VDD Power supply (3.3V) for the chip.20 FAQ for the RTL8111F-CG
Q: What is the power supply voltage for the RTL8111F-CG? A: The power supply voltage for the RTL8111F-CG is 3.3V. Q: How many pins does the RTL8111F-CG have? A: The RTL8111F-CG has 48 pins in the LQFP package. Q: What is the purpose of the MDIO pin? A: The MDIO pin is used for Management Data Input/Output and facilitates communication with the PHY layer. Q: What does the TXD0, TXD1, TXD2, and TXD3 pins do? A: The TXD0, TXD1, TXD2, TXD3 pins are used for Ethernet data transmission, each transmitting a different data stream. Q: What does the RXD0, RXD1, RXD2, and RXD3 pins do? A: The RXD0, RXD1, RXD2, RXD3 pins are used for Ethernet data reception. Q: What is the function of the CRS_DV pin? A: The CRS_DV pin is used for Carrier Sense / Data Valid, indicating if the network carrier is present and if the data is valid. Q: What does the LED0 and LED1 pins control? A: The LED0 pin indicates the link status, while the LED1 pin shows network activity. Q: What does the PHY_RESET pin do? A: The PHY_RESET pin is used to reset the PHY layer. Q: What is the use of the IRQ pin? A: The IRQ pin is used to signal interrupt requests to the host processor.Q: How does Wake-on-LAN work on the RTL8111F-CG?
A: The WAKEONLAN pin allows the system to be woken up from a low power state by receiving a special network packet.Q: What is the purpose of the SMI, SCL, and SDA pins?
A: These pins are used for System Management Interface (SMI) communication, with SCL being the clock and SDA the data line for SMBus.Q: What are the TXCLK and RXCLK pins?
A: The TXCLK pin provides the clock for transmitting data, while the RXCLK pin provides the clock for receiving data.Q: What does the COL pin indicate?
A: The COL pin indicates a collision on the network when two devices transmit data at the same time.Q: What is the role of the RX_ER pin?
A: The RX_ER pin signals a receive error, indicating a problem with data reception.Q: Can the RTL8111F-CG interface with both MII and RMII?
A: Yes, the RTL8111F-CG can interface with MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) for network communication.Q: Does the RTL8111F-CG support full-duplex communication?
A: Yes, the RTL8111F-CG supports full-duplex Ethernet communication.Q: How does the RTS/CTS mechanism work with the RTL8111F-CG?
A: The RTS/CTS mechanism is used for flow control, helping to manage data transfer when the network is busy.Q: What is the TX_CLK’s relationship to data transmission?
A: The TX_CLK pin provides the timing signal for the transmission of data over the Ethernet network.Q: What is the role of the RX_CLK pin in Ethernet communication?
A: The RX_CLK pin provides the timing signal for receiving Ethernet data.Q: Does the RTL8111F-CG support 10/100/1000 Mbps speeds?
A: Yes, the RTL8111F-CG supports 10/100/1000 Mbps speeds, enabling flexible Ethernet network configurations.