Details

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Parameter	Description
Part Number	LAN9311I-NZW
Function	Single-port Ethernet Controller with USB 2.0 Host and Device Controller
Interface	SPI, MDIO
Operating Voltage	3.3V ± 5%
Operating Temperature	-40°C to +85°C
Package Type	64-pin LQFP
Data Rate	10/100 Mbps Fast Ethernet
USB Support	USB 2.0 Hi-Speed (480 Mbps)
GPIO	17 programmable GPIO pins
Wake-on-LAN	Supported
Power Consumption	Low power consumption in standby mode

Instructions for Use:

1. Power Supply Requirements: Ensure the supply voltage is within the specified range of 3.3V ± 5%. Use appropriate decoupling capacitors near the power pins.
2. Clock Configuration: Configure the external crystal or oscillator as per the datasheet specifications for stable operation.
3. SPI Interface Setup: Connect the SPI interface pins correctly to your microcontroller. Ensure proper configuration of SPI settings including clock polarity and phase.
4. MDIO Interface: For configuring PHY parameters, use the MDIO interface. Refer to the datasheet for register addresses and values.
5. GPIO Initialization: Initialize the GPIOs according to your application needs. Some GPIOs can be used for interrupt signals or additional functionality.
6. Firmware Loading: Load the appropriate firmware via SPI or USB depending on your application setup.
7. Testing Connectivity: After setup, test the Ethernet connectivity using a standard network tester or by connecting to a network switch.
8. Standby Mode: Utilize the low-power standby mode when not actively transmitting to save power.

For detailed programming instructions and advanced configurations, refer to the official datasheet and application notes provided by the manufacturer.

(For reference only)