Difference between revisions of "KDF11-A CPU"

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[[Image:m8186.jpg|150px|thumb|right|M8186 CPU]]
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[[Image:KDF11-ATop.jpg|250px|thumb|right|M8186 CPU]]
  
 
The '''KDF11-A CPU''' is [[DEC card form factor|dual]]-width [[PDP-11]] [[Central Processing Unit|CPU]] card for the [[QBUS]]; it uses the same 'Fonz' [[F-11 chip set]] as the other [[KDF11 CPUs]].
 
The '''KDF11-A CPU''' is [[DEC card form factor|dual]]-width [[PDP-11]] [[Central Processing Unit|CPU]] card for the [[QBUS]]; it uses the same 'Fonz' [[F-11 chip set]] as the other [[KDF11 CPUs]].
  
It contains only the basic CPU, unlike the other KDF-11's: no ROM, no serial lines, etc.
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It contains only the basic CPU, unlike the other KDF-11's: no [[Read-only memory|ROM]], no [[asynchronous serial line]]s, etc. It does support the optional [[KTF11-A memory management chip]] and the [[KEF11-A floating point chip]], but not the [[KEF11-B]] [[PDP-11 Commercial Instruction Set]] (CIS).
  
 
The first version of the KDF11-A (Revision A) only suppported 256 Kbytes of [[main memory]]; later versions supported up to 4 Mbytes.
 
The first version of the KDF11-A (Revision A) only suppported 256 Kbytes of [[main memory]]; later versions supported up to 4 Mbytes.
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{{PDP-11}}
 
{{PDP-11}}

Revision as of 13:54, 27 October 2018

M8186 CPU

The KDF11-A CPU is dual-width PDP-11 CPU card for the QBUS; it uses the same 'Fonz' F-11 chip set as the other KDF11 CPUs.

It contains only the basic CPU, unlike the other KDF-11's: no ROM, no asynchronous serial lines, etc. It does support the optional KTF11-A memory management chip and the KEF11-A floating point chip, but not the KEF11-B PDP-11 Commercial Instruction Set (CIS).

The first version of the KDF11-A (Revision A) only suppported 256 Kbytes of main memory; later versions supported up to 4 Mbytes.