Overview
Overview
The W55RP20-S2E is a pre-programmed product with an Serial to Ethernet FW and a valid MAC address into the W55RP20.
WIZnet S2E Solution
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WIZnet 'Serial to Ethernet' product is a protocol converter that transmits data sent by serial equipment as TCP/IP data and converts the TCP/IP data received through the network back into serial data to the serial equipment.
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With this product, it is possible to easily add an Ethernet networking function to a device supporting UART interface, the devices can be controlled via an Ethernet network - Internet.
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We also provide Customization Services such as change / add functions by customer request.
Features
The following key features are included with the W55RP20-S2E product.
- 10/100Mbps Ethernet & Up to 921,600bps serial speed
- Easy to add Ethernet networking function through UART interface of any device / MCU
- Support RS-232C and RS-422/485 if an external circuit is configured.
- Status pins: PHY link status / TCP connection status / Run status
- Support multiple protocols
- SSL TCP client
- MQTT client
- MQTTS client
- Support protocol conversion between modbus RTU/ASCII and modbus tcp
- Support serial data packing
- Support TCP connection password
- Configuration is possible via serial AT commands or via Configuration tool
- Separate Data UART and Debug UART port
- Unique MAC Address (WIZnet OUI)
Hardware Design Guide & References
Pin Assignment
| Pin Number | Signal | Description |
|---|---|---|
| 1 | TXN | TXP/TXN differential signal pair The differential data is transmitted to the media on the TXP/TXN signal pair. |
| 2 | TXP | TXP/TXN differential signal pair |
| 3 | AVDD | TOE Analog 3.3V power |
| 4 | RXN | RXP/RXN differential signal pair The differential data from the media is received on the RXP/RXN signal pair. |
| 5 | RXP | RXP/RXN differential signal pair |
| 6 | AVDD | TOE Analog 3.3V power |
| 7 | EXRES1 | External Resistor pin Connect a resistor of 12.4KΩ to the AGND. (Refer to the “Reference schematic”) |
| 8 | AVDD | TOE Analog 3.3V power |
| 9 | UART1_TX | Serial data TX |
| 10 | UART1_RX | Serial data RX |
| 11 | UART1_CTS | Clear To Send (RX) Associated with the RTS of the connected device and is used to transmit data when the RTS sent from that pin is low. |
| 12 | UART1_RTS | Request To Send Connects with the CTS of the connected equipment and sends a low signal when the W55RP20-S2E is in a state where it can receive data. When 485/422 selected by UART_IF_SEL pin, this pin act as 485/422 select pin. NC : 485 Low : 422 |
| 13 | IOVDD | Digital IO Supply Power supply for digital GPIOs, nominal voltage 3.3V |
| 14 | DTR | Data Terminal Ready (TX) Connected to the device's DSR pin to show that it is ready to communicate. |
| 15 | DSR | Data Set Ready (RX) Connected to the device's DTR pin to indicate that it is ready for communication. |
| 16 | LINK_STATUS | Link Status signal High : Link Low : UnLink |
| 17 | TCP_STATUS | TCP Connection High : Connect Low : Disconnect |
| 18 | UART_IF_SEL | UART Interface select High : 485/422 Low or NC : TTL/232 |
| 19 | RESERVED | RESERVED PIN |
| 20 | HW_TRIG | AT Command mode pin High : Gateway Mode (default) Low : AT Command Mode Changes will be reflected after reset |
| 21 | BOOT_MODE | Boot Mode pin Low : Enter W55RP20-S2E BOOT mode Changes will be reflected after reset |
| 22 | TESTEN | Factory test mode pin Tie to GND. |
| 23 | XIN | Crystal input/output Connect a crystal to RP2040’s crystal oscillator. XIN can also be used as a single-ended CMOS clock input, with XOUT disconnected. The USB bootloader requires a 12MHz crystal or 12MHz clock input. |
| 24 | XOUT | Crystal input/output |
| 25 | IOVDD | Digital IO Supply Power supply for digital GPIOs, nominal voltage 3.3V |
| 26 | DVDD | Digital core power supply Nominal voltage 1.1V. Can be connected to VREG_VOUT, or to some other board-level power supply. |
| 27 | SWCLK | Debug clock/data Access to the internal Serial Wire Debug multi-drop bus. Provides debug access to both processors, and can be used to download code. |
| 28 | SWD | Debug clock/data |
| 29 | RUN | Global asynchronous reset pin Reset when driven low, run when driven high. If no external reset is required, this pin can be tied directly to IOVDD. |
| 30 | RESERVED | RESERVED PIN |
| 31 | AVDD | TOE Analog 3.3V power |
| 32 | VBG | Output of band gap |
| 33 | TOCAP | External Reference Capacitor This pin must be connected to a 4.7uF capacitor. The trace length to capacitor should be short to stabilize the internal signals. |
| 34 | AVDD | TOE Analog 3.3V power |
| 35 | 1V2O | 1.2V regulator output voltage Connect 10nF capacitor. |
| 36 | SPDLED | Speed LED This shows the Speed status of the connected link. Low: 100Mbps High: 10Mbps |
| 37 | LINKLED | Link LED This shows the Link status. Low: Link is established High: Link is not established |
| 38 | DUPLED | Duplex LED This shows the Duplex status for the connected link. Low: Full-duplex mode High: Half-duplex mode |
| 39 | ACTLED | Active LED This shows that there is Carrier sense (CRS) from the active Physical Medium Sub-layer (PMD) during TX or RX activity. Low: Carrier sense from the active PMD High: No carrier sense |
| 40 | FACT_RESET | Factory Reset Pin Drive this pin to Low for at least 5.0s then W55RP20-S2E will be reset to factory settings |
| 41 | RUN_STATUS | Switch Toggle every 1.0s when W55RP20-S2E application is working. |
| 42 | VDD | TOE Digital 3.3V Power |
| 43 | IOVDD | Digital IO Supply Power supply for digital GPIOs, nominal voltage 3.3V |
| 44 | XI | 25MHz crystal input/output A 25MHz crystal and oscillator is used to connect these pins. |
| 45 | XO | 25MHz crystal input/output A 25MHz crystal and oscillator is used to connect these pins. |
| 46 | RESERVED | RESERVED PIN |
| 47 | RESERVED | RESERVED PIN |
| 48 | RESERVED | RESERVED PIN |
| 49 | RESERVED | RESERVED PIN |
| 50 | PMODE2 | PHY Operation mode select pins. Default: Pull-up (77kΩ) |
| 51 | PMODE1 | PHY Operation mode select pins. Default: Pull-up (77kΩ) |
| 52 | PMODE0 | PHY Operation mode select pins. Default: Pull-up (77kΩ) |
| 53 | IOVDD | Digital IO Supply Power supply for digital GPIOs, nominal voltage 3.3V. |
| 54 | ADC_AVDD | ADC supply Power supply for analogue-to-digital converter, nominal voltage 3.3V. |
| 55 | VREG_VIN | Voltage regulator input supply Power input for the internal core voltage regulator, nominal voltage 1.8V to 3.3V. |
| 56 | VREG_VOUT | Voltage regulator output Power output for the internal core voltage regulator, nominal voltage 1.1V, 100mA max current. |
| 57 | USB_DM | USB controller, supporting Full Speed device and Full/Low Speed host. A 27Ω series termination resistor is required on each pin, but bus pull-ups and pull-downs are provided internally. |
| 58 | USB_DP | USB controller |
| 59 | USB_VDD | USB supply Power supply for internal USB Full Speed PHY, nominal voltage 3.3V |
| 60 | IOVDD | Digital IO Supply Power supply for digital GPIOs, nominal voltage 3.3V |
| 61 | DVDD | Digital core power supply, nominal voltage 1.1V. Can be connected to VREG_VOUT, or to some other board-level power supply |
| 62 | VDD | Power supply of the Flash Memory |
| 63 | BOOT | BOOT Pin When power is applied and during reset, if the BOOT pin is low, the device enters BOOTSEL mode. |
| 64 | IOVDD | Digital IO Supply Power supply for digital GPIOs, nominal voltage 3.3V |
| 65 | UART0_RX | Debug RX |
| 66 | UART0_TX | Debug TX |
| 67 | RESERVED | RESERVED PIN |
| 68 | RESERVED | RESERVED PIN |
| 69 | GND | Ground |
**BOOT_MODE pin is for Entering W55RP20-S2E BOOT mode and BOOT pin is for Entering RP2040 core BOOT mode.
Manuals
- How to use Config-tool
- How to use Web config
- How to use AT CMD
- How to connect MQTT
- How to connet SSL
- How to connet Modbus
- How to upload/update FW
- How to do factory reset
- How to write MAC Address
Customization Services
WIZnet offers Customization services for your specific needs.
We can provide customization services based on W55RP20-S2E chip products: Depending on the customer application, it is possible to change the initial settings of the product, change the MAC address, add various protocols, and add functions. The developed firmware is programmed into the W55RP20 MCU and delivered to the requesting customer.
We also provide technical support including various hardware guide and references for customer's quick product design-win.