Difference between revisions of "PDP-11/34A"
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The '''PDP-11/34A''' is the version of the [[PDP-11/34]] with the upgraded [[KD11-EA CPU|KD11-EA]] [[Central Processing Unit|CPU]] needed to supported the optional [[FP11-A Floating-Point Processor|FP11-A]] [[FP11 floating point|floating point]] unit and/or the [[KK11-A Cache Memory|KK11-A]] [[cache]]. | The '''PDP-11/34A''' is the version of the [[PDP-11/34]] with the upgraded [[KD11-EA CPU|KD11-EA]] [[Central Processing Unit|CPU]] needed to supported the optional [[FP11-A Floating-Point Processor|FP11-A]] [[FP11 floating point|floating point]] unit and/or the [[KK11-A Cache Memory|KK11-A]] [[cache]]. | ||
| − | A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor|hex]] boards of the [[KD11-E CPU|KD11-E]] CPU. | + | A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor|hex]] [[printed circuit board|boards]] of the [[KD11-E CPU|KD11-E]] CPU. Since the [[DD11-P backplane]] of the -11/34 was not modified, if the cache or floating point boards were added, it used a baroque system of special [[over the back|over the top]] (OTT) connectors to join up one or both to the rest of the CPU. |
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| + | ==External links== | ||
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| + | * [http://www.vaxhaven.com/images/8/84/EK-11034-MC-003.pdf PDP-11/04/34/34A Maintenance Card] (EK-11034-MC-003) | ||
| + | * [https://www.pdp-11.nl/pdp11-34a/pdp11-34general.html PDP-11/34A Processor Overview] | ||
| + | * [http://www.bitsavers.org/pdf/dec/pdp11/handbooks/PDP-11_Processor_Handbook_1981.pdf pdp11 processor handbook - pdp11/04/24/34A/44/70] | ||
{{PDP-11}} | {{PDP-11}} | ||
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| + | [[Category: UNIBUS PDP-11s]] | ||
Latest revision as of 22:41, 29 February 2024
The PDP-11/34A is the version of the PDP-11/34 with the upgraded KD11-EA CPU needed to supported the optional FP11-A floating point unit and/or the KK11-A cache.
A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two hex boards of the KD11-E CPU. Since the DD11-P backplane of the -11/34 was not modified, if the cache or floating point boards were added, it used a baroque system of special over the top (OTT) connectors to join up one or both to the rest of the CPU.
External links
- PDP-11/04/34/34A Maintenance Card (EK-11034-MC-003)
- PDP-11/34A Processor Overview
- pdp11 processor handbook - pdp11/04/24/34A/44/70
| v • d • e PDP-11 Computers and Peripherals |
|---|
| UNIBUS PDP-11s - PDP-11/20 • PDP-11/15 • PDP-11/35 • PDP-11/40 • PDP-11/45 • PDP-11/50 • PDP-11/55 • PDP-11/70 PDP-11/05 • PDP-11/10 • PDP-11/04 • PDP-11/34 • PDP-11/60 • PDP-11/44 • PDP-11/24 • PDP-11/84 • PDP-11/94 QBUS PDP-11s - PDP-11/03 • PDP-11/23 • PDP-11/23+ • MicroPDP-11/73 • MicroPDP-11/53 • MicroPDP-11/83 • MicroPDP-11/93 QBUS CPUs: LSI-11 • LSI-11/2 • KDF11-A • KDF11-B • KDJ11-A • KDJ11-B • KDJ11-D • KDJ11-E Buses: UNIBUS • UNIBUS map • SPC • MUD • EUB • QBUS • CD interconnect • PMI Also: PDP-11 architecture • PDP-11 Extended Instruction Set • FP11 floating point • PDP-11 Memory Management |
| UNIBUS CPUs: KA11 • KC11 • KB11-A • KB11-B • KB11-C • KB11-D • KD11-A • KD11-B • KD11-D • KD11-E • KD11-EA • KD11-K • KD11-Z • KDF11-U
Co-processors: FP11-A • FP11-B • FP11-C • FP11-E • FP11-F • KE44-A • FPF11 Chips: LSI-11 • KEV11-A • KEV11-B • KEV11-C • F-11 • KEF11-A • KTF11-A • T-11 • J-11 • FPJ11 CPU options: KE11-E • KE11-F • KJ11-A • KT11-C • KT11-D • KK11-A • KK11-B • KT24 • KTJ11-B Rare CPU options: KS11 Memory Protection and Relocation option • KT11-B Paging Option • KUV11 Writeable Control Store Front panels: KY11-A • KY11-D • KY11-J • KY11-LA • KY11-LB • KY11-P More on buses: UNIBUS and QBUS termination • Bus Arbitration on the Unibus and QBUS • CTI BUS PDT-11s - PDT-11/110 • PDT-11/130 • PDT-11/150 CTI PDP-11s - PRO-325 • PRO-350 • PRO-380 Other: FIS floating point • PDP-11 Commercial Instruction Set • PDP-11 stacks • PDP-11 family differences |
