12 Jun
2006
12 Jun
'06
5:51 p.m.
Hi,
Finally getting around to some spring pdp-11 hacking. I managed to boot
2.11BSD on my 11/44 this morning :-) Now I want to (slowly) add
peripherals.
I discovered I have an RX11 board (quad width) and I think I want to try
and connect it to an RX02 drive box.
Anyone know the basic difference between an RX11 and an RX211? Can you
plug an RX02 into an RX01? I really only want RX01 to be honest.
Something tells me I need an RX211 but i thought i'd be lazy and ask here.
M7846 RX11 U RX01 floppy disk controller
M8256 RX211 U RX02 floppy disk controller
I believe you can use a RX02 drive unit with an RX11 if you set the DIP
switches inside the drive unit correctly (it's either in the technical
manual, or the pocket service guide, or both). You are limited to
single-density operation, the thing exactly emulates an RX01 in this mode.
-tony