Starter Kit - 

The AT89STK-05 is an starter kit for the AT89C5131 USB flash microcontroller. The kit includes an evaluation board, the FLIP (Flexible In-System Programming) tool, and a HID (Human Interface device) keyboard demonstration program. The AT89C5131A evaluation board includes all the required hardware to manage the RS232 communication. The USB peripheral can also be used to perform an in-system programming. AT89C5131A is high performance flash version of the 80C51 single chip 8bit microcontroller with full speed USB functions. It features a full speed USB module compatible with the USB specifications Version 1.1 and 2.0. The module integrates the USB transceivers with a 3.3V voltage regulator. The serial interface engine integrates digital phase locked loop and 48MHz clock recovery. The module also contains USB event detection logic and FIFO buffers which support the mandatory control endpoint and up to six versatile endpoints with minimum software overhead.