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HMC783LP6CE serial port write operation

Question asked by r14n on Jan 7, 2015
Latest reply on Jan 9, 2015 by r14n

     Actually, I control the HMC783LP6CE (fractional-n PLL with integrated VCO) using the USB interface board included in the evaluation kit (HMC-DK008 with a FT2232D chip).

     To control the HMC783LP6CE is it necessary to put the FT2232D chip (datasheet in attachment) in Fast Opto-Isolated Serial Interface mode? If it is necessary, then in this mode it's only possible to transmit 1 start bit, 8 data bits and 1 destination bit, while in the Serial Port WRITE Operation of HMC783LP6CE, according to the manual (in attachment), it is necessary to transmit 1 x bit, 1 write mode bit, 6 address bits and 24 data bits sequentially with SCK at speeds up to 50 MHz. What is the best method to implement this write operation?