Ok we can ask about this, can someone explain what is this reverse-ATA mode?
I will try it:
In fixed-Master-Mode the drive will identify as master and takes also control about a perhaps present slave drive on the same Ide-channel.
In fixed-Slave-Mode the drive will identify as slave and needs normally a present master drive on the same ide-channel.
For this behaviour special signals on the cable are not interesting.
In cable-select-mode the position of the drive on the cable defines the function of the drive.
This will done with a signal on the cable (i believe 47 on slimline drives)
In reverse-ata-mode the drive identify exactly reverse to cable select:
In case that cable-select "produces" a master drive, the same signal on a reverse-ata-drive produces a slave.
I hope what i know is correct, but when not please don't kill me.