Difference between revisions of "KEV11-A floating point"

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The '''KEV11-A''' is an optional [[integrated circuit|chip]] for [[LSI-11 chip set|LSI-11]] [[Central Processing Unit|CPU]] which adds support for the [[PDP-11 Extended Instruction Set]] and also [[FIS floating point]].
 
The '''KEV11-A''' is an optional [[integrated circuit|chip]] for [[LSI-11 chip set|LSI-11]] [[Central Processing Unit|CPU]] which adds support for the [[PDP-11 Extended Instruction Set]] and also [[FIS floating point]].
  
One version is a 23-003B5 3015 (also 3015A and 3015D, the latter sometimes marked 23-009B5), seen with the [[LSI-11 chip set#Chip variants|first set]] of LSI-11 chips, which are suitable for the M7274 [[DEC card form factor|quad]] card [[printed circuit board|etch]] revisions E and F, and the M7260 dual card. Another version is the 23-091A5, suitable for the M7274 etch revisions C and D (although it has also been seen on etch revision F cards).
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One version has the [[DEC part numbers|DEC part number]] 23-003B5 3015 (also 3015A and 3015D, the latter sometimes marked 23-009B5), seen with the [[LSI-11 chip set#Chip variants|first set]] of LSI-11 chips, which are suitable for the M7274 [[DEC card form factor|quad]] card [[printed circuit board|etch]] revisions E and F, and the M7260 dual card. Another version is the 23-091A5, suitable for the M7274 etch revisions C and D (although it has also been seen on etch revision F cards).
  
 
{{PDP-11}}
 
{{PDP-11}}
  
 
[[Category:PDP-11 Processors]]
 
[[Category:PDP-11 Processors]]

Latest revision as of 03:18, 1 January 2021

KEV11.jpg

The KEV11-A is an optional chip for LSI-11 CPU which adds support for the PDP-11 Extended Instruction Set and also FIS floating point.

One version has the DEC part number 23-003B5 3015 (also 3015A and 3015D, the latter sometimes marked 23-009B5), seen with the first set of LSI-11 chips, which are suitable for the M7274 quad card etch revisions E and F, and the M7260 dual card. Another version is the 23-091A5, suitable for the M7274 etch revisions C and D (although it has also been seen on etch revision F cards).