Roe
Experienced Member
I have an M8186 KDF11 cpu card, etch C (I think) and there is some confusion about max memory.
The 1985 DEC Microcomputer Products Handbook states it is "capable of addressing up to 4 megabytes of main memory." (Pg 3-1)
On the other hand, the preliminary KDF11-A users guide on bitsavers states it maxes out at 256k, with 11/34 style memory management.
I've found references to a KDF11-BA quad width CPU with full 22-bit addressing, but that's a whole different beast.
Anyone have any information? I hesitate to plug this into a Q22 bus with 4MB of memory just to test it.
Thanks!
The 1985 DEC Microcomputer Products Handbook states it is "capable of addressing up to 4 megabytes of main memory." (Pg 3-1)
On the other hand, the preliminary KDF11-A users guide on bitsavers states it maxes out at 256k, with 11/34 style memory management.
I've found references to a KDF11-BA quad width CPU with full 22-bit addressing, but that's a whole different beast.
Anyone have any information? I hesitate to plug this into a Q22 bus with 4MB of memory just to test it.
Thanks!