Configuring the CX5M-II device with disk access in the blueMSX I found out I did not know what controller was used in the FD-051. Opened it up and found it’s the FD1793 controller, you can download the datasheet here
Handy; A list of modes to set your RCA to PAL/NTSC or whatever, not sure if you want to but just to make this a complete post:
sdtv_mode=0 Normal NTSC
sdtv_mode=1 Japanese version of NTSC – no pedestal
sdtv_mode=2 Normal PAL
sdtv_mode=3 Brazilian version of PAL – 525/60 rather than 625/50, different subcarrier
(taken from http://elinux.org/RPiconfig#Video_mode_options )
So as I mentioned earlier I was not really using Windows system for a while now. But recently I came to search for a decent MSX emulator on OSX – which was a bit harder than I thought.