The UMFTPD2A module is used for programming/debugging the FT90x series of 32-bit microcontrollers. It provides a USB connection from a PC to the 1-wire program/debug port of the FT90x chip.
FT4232H USB 2.0 Hi-Speed (480Mb/s) to 4 x UART converter Channel A: serial UART I/O One-Wire program/debug interface Channel B: MPSSE interface for EFUSE program Channel C: serial UART I/O for general purpose use Channel D: Bit-Bang port GPIO for general purpose use 2 x 5-pin 1.27mm pitch Micro-MaTch socket 2 x 6-pin 2.54mm pitch through hole pin header USB Micro-B host socket also supplies power 3 x power supply LEDs