Difference between revisions of "FP11-A Floating-Point Processor"

From Computer History Wiki
Jump to: navigation, search
m (Proper cat)
m (+cat, +links)
Line 1: Line 1:
The '''FP11-A Floating-Point Processor''' is the optional hardware [[floating point]] unit for the [[PDP-11/34A]] ([[KD11-EA CPU|KD11-EA]] [[Central Processing Unit|CPU]]). It supports the full [[PDP-11]] [[FP11 floating point]].
+
The '''FP11-A Floating-Point Processor''' is the optional [[hardware]] [[floating point]] unit for the [[PDP-11/34A]] ([[KD11-EA CPU|KD11-EA]] [[Central Processing Unit|CPU]]). It supports the full [[PDP-11]] [[FP11 floating point]].
  
It consists of a single [[DEC card form factor|hex]] board, the M8267. Its connections to the KD11-EA include two over-the-top connectors; a 20-pin connector to the M8265 card of the KD11-EA, and a 10 pin connector to the M8266 card.
+
It consists of a single [[DEC card form factor|hex]] board, the M8267. Its connections to the KD11-EA include two [[over the back|over-the-top]] connectors; a 20-pin connector to the M8265 card of the KD11-EA, and a 10 pin connector to the M8266 card.
  
 
The latter over-the-top connector uses the connectors on the M8266 card which normally hold the maintenance cables to the [[KY11-LB Programmer's Console]]; in systems with a KY11-LB, the cables to the console will now connect to the M8267 card. (This is all necessitated because the FP11-A needs access to signals carried over the maintenance cables.)
 
The latter over-the-top connector uses the connectors on the M8266 card which normally hold the maintenance cables to the [[KY11-LB Programmer's Console]]; in systems with a KY11-LB, the cables to the console will now connect to the M8267 card. (This is all necessitated because the FP11-A needs access to signals carried over the maintenance cables.)
Line 8: Line 8:
  
 
{{PDP-11}}
 
{{PDP-11}}
 +
 +
[[Category: PDP-11 Processors]]

Revision as of 01:05, 20 December 2018

The FP11-A Floating-Point Processor is the optional hardware floating point unit for the PDP-11/34A (KD11-EA CPU). It supports the full PDP-11 FP11 floating point.

It consists of a single hex board, the M8267. Its connections to the KD11-EA include two over-the-top connectors; a 20-pin connector to the M8265 card of the KD11-EA, and a 10 pin connector to the M8266 card.

The latter over-the-top connector uses the connectors on the M8266 card which normally hold the maintenance cables to the KY11-LB Programmer's Console; in systems with a KY11-LB, the cables to the console will now connect to the M8267 card. (This is all necessitated because the FP11-A needs access to signals carried over the maintenance cables.)