3.6 USB-UART Virtual COM Port

The WBZ451HPE Curiosity Board has an on-board MCP2200 (U18) that acts as a USB-to-UART converter with hardware flow control support. It enables the user to connect to the Host PC through the USB Type-C connector (J7). MCP2200 supports UART baud rates from 300-1000 kbps. Voltage level translators are provided on signals between the MCP2200 and WBZ451HPE module for supporting target voltage from 1.9-3.6V when powered externally.

Table 3-5. USB Serial Converter Pin Assignment
Pin on MCP2200Pin on WBZ451HPE ModuleDescription

TX

PA6, SERCOM0_PAD1

UART RX pin of the WBZ451HPE module

RX

PA5, SERCOM0_PAD0

UART TX pin of the WBZ451HPE module

RTS

PA4, SERCOM0_PAD3

UART CTS pin of the WBZ451HPE module

CTS

PA3, SERCOM0_PAD2

UART RTS pin of the WBZ451HPE module