Guys,
Is there any way to save date / time in OCM or does it not emulate CMOS? I have to set time / date every time I boot up MSX-DOS2... 
afaik, the clockchip (and/or its sram) is not emulated.
That's what I feared 
Thanks, guys!
I registered about 20mins before 
Thanx a lot for the link!
Btw, is it usual, that the Sunrise IDE interface doesn't work in the OCMs' 10MHz mode?
Heh! Now I got it! Great! 
The clock chip including the settings memory is emulated but looses it's data every time the power is switched off.That's a pretty piss poor emulation of the SRAM, then 
The clock chip including the settings memory is emulated but looses it's data every time the power is switched off.That's a pretty piss poor emulation of the SRAM, then 
The FPGA draws too much power to retain the data and keep the (emulated) real time clock running on a battery. To have this feature, a separate real time clock chip with some embedded SRAM should have been included in the hardware design (and a battery). Preferably the same RTC chip as was used in the earlier MSX2/2+/turboR models from the 80's and early 90's. Don't know why this was not done.