The ESKT8ICPL is an adaptor dedicated for Holtek 8-bit MCU BH67F2132 48LQFP. It have to work together with the Holtek e-WriterPro programmer.
The pin header on the ESKT8ICPL is used for in-circuit-programming (ICP) purpose. To program the MCU on the board, users only need to connect the 4 signals (ICPCK, ICPDA, VDD, and GND) on the ESKT8ICPL to the target board.