controlling a bh1414k form rohmelectronics

hello,
i wan't to control a rohmelectronics bh1414k, this is a little FM-PLL with stereo multiplexer integrated

http://www.rohmelectronics.com/downloads/products/focus/audio_lsi/bh1414k.pdf
see page 17-18 about the serial communication.

i'm not really new in embedded electronics but i don't know very much about programming them neather C. in the reference guide ( Serial.print() - Arduino Reference ) for the command 'Serial.print(b, BIN)' they talk about ASCII-sting??? can i also take a HEX number and print it in binary? confused or si it better to take the SPI guide to approach the problem...

The Serial.print and related commands are for transmitting asynchronous serial data (like to a computers com port). The data sheet you specified is using a synchronous serial protocol. From a cursory glance it looks like a standard SPI protocol. I believe the command you want to look at for this is shiftout

http://www.arduino.cc/en/Reference/ShiftOut

It is also possible that this could be a I2C synchronous prototcol in which case you should look at the Wire library.