Wiznet W5500

Hedy · Dasenic Apr 20,2024 4

W5500 Introduction

W5500 is a hardware-based TCP/IP protocol stack Ethernet controller developed by Wiznet. It is an integrated solution that supports high-speed and stable network connections and is very suitable for embedded network applications. By communicating with the main control MCU through the SPI interface, W5500 can quickly implement network functions without implementing complex protocol stacks in the main control chip.

W5500 Parameters

W5500 Similar Comparisons

W5500 vs TMS320F28021PTT vs TMS320F28027PTT vs TMS320F280200PTT vs STM32F030C8T6 Comparison

Parameter	W5500	TMS320F28021PTT	TMS320F28027PTT	TMS320F280200PTT	STM32F030C8T6
Image
Manufacturer	Wiznet	Texas Instruments	Texas Instruments	Texas Instruments	STMicroelectronics
Type	Ethernet Controller	Microcontroller (DSP)	Microcontroller (DSP)	Microcontroller (DSP)	Microcontroller (Cortex-M0)
Core	N/A	C28x (32-bit)	C28x (32-bit)	C28x (32-bit)	ARM Cortex-M0
Clock Speed	N/A	40 MHz	60 MHz	40 MHz	48 MHz
Flash Memory	N/A	64 KB	64 KB	32 KB	64 KB
RAM	32 KB (buffer)	8 KB	12 KB	8 KB	8 KB
Peripherals	Ethernet PHY, SPI	PWM, ADC, SCI, SPI	PWM, ADC, SCI, SPI, CAN	PWM, ADC, SCI, SPI	UART, SPI, I2C, ADC, Timers
Communication	SPI (80 MHz), Ethernet	SPI, UART	SPI, UART, CAN	SPI, UART	SPI, UART, I2C
GPIO Pins	N/A	22	22	22	51
Operating Voltage	3.3V	3.3V	3.3V	3.3V	2.4V ~ 3.6V
Package	QFN-48 (7x7 mm) / LQFP	LQFP-48	LQFP-48	LQFP-48	LQFP-48
Key Features	Hardware TCP/IP Stack, 8 Sockets	DSP optimized for control applications	Enhanced features, CAN support	Entry-level DSP	General-purpose microcontroller
Applications	Ethernet IoT, Industrial Automation	Motor Control, Power Conversion	Motor Control, Industrial Applications	Motor Control, Automation	IoT, General Embedded Systems

Analysis

W5500

A hardware TCP/IP controller designed for Ethernet communication, suitable for embedded systems that implement high-speed network communication.

TMS320 Series

Focusing on digital signal processing (DSP), it is suitable for scenarios with high requirements for precise control such as motor control and industrial automation.

The enhanced version of TMS320F28027PTT provides higher performance and supports CAN bus.

TMS320F280200PTT is an entry-level version suitable for cost-sensitive applications.

STM32F030C8T6

General-purpose microcontroller based on ARM Cortex-M0 core, integrating multiple peripherals, suitable for low-cost embedded applications.

Selection suggestion

Require Ethernet function: choose W5500, suitable for network-related IoT applications.

Motor control or industrial automation: choose TMS320F28027PTT (requires CAN) or TMS320F280200PTT (low cost).

General-purpose low-cost MCU: choose STM32F030C8T6, suitable for medium and low-complexity embedded projects.

W5500 Main features

1.Integrated hardware TCP/IP protocol stack

Support IPv4, ICMP, ARP, IGMP, UDP, TCP, PPPoE and other protocols.

Hardware protocol stack accelerates data processing and reduces the burden on the MCU.

2. 8 independent sockets

Each socket can be used independently for TCP/UDP connections.

Supports concurrent communication.

3.High-speed SPI interface

The maximum SPI clock frequency is 80 MHz.

Supports SPI modes 0 and 3.

4.Built-in 32 KB transmit and receive buffers

Provides efficient buffer management and optimizes data transmission performance.

5.Low power consumption

Supports standby mode and wake-up mode for low-power devices.

6.Network security support

Built-in physical layer (PHY) and MAC address processing functions.

Supports hardware checksum verification.

7.Supports multiple network functions

Dynamic Host Configuration Protocol (DHCP) and Network Time Protocol (NTP).

Supports Wake on LAN (WOL) function.

W5500 Datasheet

W5500 PDF Datasheet

W5500 Pin Function

The W5500 is packaged in a 48-pin QFN (7x7mm) or LQFP package. The following is a description of the main pins:

Pin Name	Functional Description
MOSI	SPI master data output, slave data input
MISO	SPI master data input, slave data output
SCLK	SPI clock input
CS	SPI chip select signal, low level valid
RSTn	hardware reset signal, low level reset
INTn	interrupt signal output, low level valid
VDD	power supply positive pole (3.3V)
GND	power supply negative pole
RX+/RX-	Ethernet receive differential signal
TX+/TX-	Ethernet transmit differential signal

W5500 Application Areas

1.Internet of Things (IoT)

Smart home devices: such as networked lights, door locks, cameras, etc.

Industrial IoT Gateway: real-time data acquisition and transmission.

2.Embedded Network Devices

Network printers, embedded servers, etc.

3.Industrial Automation

Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCSs).

4.Remote Monitoring

Video streaming or remote device status monitoring.

Comparison with other Ethernet chips

Chip Model	SPI Speed	Buffer Size	Sockets	Function
W5500	80 MHz	32 KB	8	Hardware TCP/IP Stack
ENC28J60	20 MHz	8 KB	1	No TCP/IP Stack
W5100	20 MHz	16 KB	4	Hardware TCP/IP Stack

W5500 FAQs

1. What is W5500?

W5500 is an Ethernet control chip developed by Wiznet. It integrates a hardware TCP/IP protocol stack and communicates with the main control MCU through the SPI interface, which can quickly achieve stable network connection. It is suitable for applications such as the Internet of Things (IoT), embedded network devices, and industrial automation.

2. What are the main functions of W5500?

Supports IPv4, TCP, UDP, ICMP, ARP, IGMP, and PPPoE protocols.

Integrated 32 KB send and receive buffers.

Provides 8 independent network sockets and supports concurrent connections.

Supports a maximum SPI interface of 80 MHz.

Integrated Ethernet physical layer (PHY), no external PHY chip required.

Supports Wake on LAN (WOL) and hardware checksum verification.

3. How does W5500 communicate with MCU?

W5500 uses SPI interface to communicate with MCU, and its main signals include:

MOSI: master device output, slave device input.

MISO: master device input, slave device output.

SCLK: SPI clock signal.

CS: chip select signal, low level is valid.

MCU sends commands and data through SPI, and W5500 processes network data according to instructions.

4. How to configure the IP address of W5500?

W5500 can set its IP address, subnet mask and gateway address through SPI instructions. The following are typical steps:

Set Subnet Mask.

Set Gateway Address.

Set Source IP Address.

Set network mode (such as DHCP or static IP).

5.Does W5500 support dynamic IP allocation (DHCP)?

Yes, but the master MCU needs to implement the DHCP client protocol. Wiznet provides relevant DHCP client code library, which can be called directly to simplify development.

6. What is the maximum data transfer rate of W5500?

In full-duplex 100 Mbps mode, the theoretical maximum data transfer rate of W5500 is close to 100 Mbps, but the actual rate may be limited by the SPI clock frequency and the performance of the master control.

7. How is the buffer of W5500 allocated?

The 32 KB buffer of W5500 can be dynamically allocated among 8 sockets according to application needs, and the user can configure the buffer size of each socket through registers.

8. Does W5500 support IPv6?

W5500 does not support IPv6, only IPv4 protocol. If you need to support IPv6, you can consider using other chips from Wiznet such as W6100.

9. How to debug W5500?

Check SPI communication to ensure that the master MCU can read the registers of W5500 correctly.

Use a network packet capture tool (such as Wireshark) to monitor network data and check if there is data loss or communication error.

Check the status of the interrupt pin (INTn) to locate possible problems.

10. What are the typical applications of W5500?

Internet of Things (IoT): such as smart home gateways and networked sensors.

Embedded network devices: such as network printers and data acquisition systems.

Industrial automation: remote equipment monitoring and control.

Gaming or multimedia devices: to achieve network communication.

11. How to choose a suitable MCU for use with W5500?