DEC 11/23 FP option (FPF11/M8188) information request

From: emanuel stiebler <emu_at_ecubics.com>
Date: Wed Oct 8 13:04:38 2003

Patrick Finnegan wrote:

> I've managed to pick up an FPF11/M8188 (PDP-11/23 Floating Point option)
> for my PDP-11/23, and I'm wondering if anyone here knows how to set up/
> configure this thing. It's a standard-looking dual-height QBUS module,
> with a 2x20 pin header at the top of the card (with the QBUS fingers
> pointing downward. I've got a non-+ 11/23 CPU board that I'd like to get
> it to work with, currently stuck in a BA23 cabinet.

I hope I understand you here, but if you're trying to use it on a non
11/23 system you out of luck (OK, you can use it on a 11/24 too ...)
If you look carefully at this board, you see that the qbus finger are
only for the power supply of this board, there are no signals on it.
Everything else this board needs is coming from the 11/23 or 11/24 FPU
socket on the CPU module ...
cheers
Received on Wed Oct 08 2003 - 13:04:38 BST