Difference between revisions of "PDP-11/04"

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[[Category:UNIBUS Processors]]
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[[Image:pdp11_04.jpg|thumb|right|200px|PDP-11/04]]
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The '''PDP-11/04''' was a mid/late-70s implementation of the [[PDP-11]] architecture for the [[UNIBUS]]; it was a replacement for the [[PDP-11/05]]. It used the [[KD11-D CPU]], which was implemented on a single [[DEC card form factor|hex]] card (M7263), the first PDP-11 [[CPU]] to be contained on a single board.
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It was the first PDP-11 to come standard without a 'proper' lights and switches front panel: the standard [[KY11-LA Operator's Console]] front panel had only 'Boot/Init', 'Halt/Cont', and power switches, and the system came with an [[M9301 ROM]] card which included a console emulator, which communicated through the console terminal.
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DEC did offer the [[KY11-LB Programmer's Console]] as an option for the -11/04; it had an octal keypad, the usual 'Halt'/'Start'/etc keys, and a 6-digit LED display which showed address/data digitally.
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It came in two chassis configurations: the [[BA11-L]] half-height box, which had the entire computer - card guide frame, backplane, power supply, and front panel - sliding into an evil jamming finger-trapping metal sleeve; and a full-height example, basically the same [[BA11-K]] box as used throughout the PDP-11 line. (This is very similar to its higher-spec twin, the [[PDP-11/34]].)
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==Registers==
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Like its predecessor [[PDP-11/05]], the general registers (R0-R5, SP and PC) have addresses assigned to them; they are also accessible from the UNIBUS, and therefore from the KY11-LB Programmer's Console, when the machine is halted. Their addresses are:
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{| class="wikitable"
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! Address !! Register
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|-
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| 777700 || R0
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|-
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| ...
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|-
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| 777705 || R5
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|-
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| 777706 || SP
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|-
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| 777707 || PC
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|}
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Note that the registers are word-accessible at odd addresses on the UNIBUS (unlike any other device); and their addresses, like those on the -11/05, increment by 1, not by 2, as is usual for word-sized items.
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In addition, four internal CPU registers which record the CPU's most recent memory operations are also available:
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{| class="wikitable"
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! Address !! Register
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|-
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| 777710 || Source address
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|-
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| 777711 || Source data
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|-
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| 777712 || Destination address
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|-
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| 777713 || Destination data
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|}
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==See also==
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* [[M8264 No-SACK Timeout Module]]
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* [[UNIBUS and QBUS termination]] - in particular, the [[UNIBUS and QBUS termination#SACK turnaround and CPU hangs|SACK turnaround and CPU hangs]] section
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==External links==
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* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/EK-11004-OP-001%20PDP-11-04%20System%20User's%20Manual.pdf PDP-11/04 system user's manual]
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* [http://www.bitsavers.org/pdf/dec/pdp11/1104/MP00019_1104_EngrDrws_Feb78.pdf PDP-11/04 engineering drawings]
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* [http://www.bitsavers.org/pdf/dec/pdp11/handbooks/PDP-11_Processor_Handbook_1981.pdf pdp11 processor handbook - pdp11/04/24/34A/44/70]
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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)
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* [http://www.corestore.org/1104.htm PDP-11/04] at corestore.org
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{{PDP-11}}
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[[Category: UNIBUS PDP-11s]]

Latest revision as of 22:36, 29 February 2024

PDP-11/04

The PDP-11/04 was a mid/late-70s implementation of the PDP-11 architecture for the UNIBUS; it was a replacement for the PDP-11/05. It used the KD11-D CPU, which was implemented on a single hex card (M7263), the first PDP-11 CPU to be contained on a single board.

It was the first PDP-11 to come standard without a 'proper' lights and switches front panel: the standard KY11-LA Operator's Console front panel had only 'Boot/Init', 'Halt/Cont', and power switches, and the system came with an M9301 ROM card which included a console emulator, which communicated through the console terminal.

DEC did offer the KY11-LB Programmer's Console as an option for the -11/04; it had an octal keypad, the usual 'Halt'/'Start'/etc keys, and a 6-digit LED display which showed address/data digitally.

It came in two chassis configurations: the BA11-L half-height box, which had the entire computer - card guide frame, backplane, power supply, and front panel - sliding into an evil jamming finger-trapping metal sleeve; and a full-height example, basically the same BA11-K box as used throughout the PDP-11 line. (This is very similar to its higher-spec twin, the PDP-11/34.)

Registers

Like its predecessor PDP-11/05, the general registers (R0-R5, SP and PC) have addresses assigned to them; they are also accessible from the UNIBUS, and therefore from the KY11-LB Programmer's Console, when the machine is halted. Their addresses are:

Address Register
777700 R0
...
777705 R5
777706 SP
777707 PC

Note that the registers are word-accessible at odd addresses on the UNIBUS (unlike any other device); and their addresses, like those on the -11/05, increment by 1, not by 2, as is usual for word-sized items.

In addition, four internal CPU registers which record the CPU's most recent memory operations are also available:

Address Register
777710 Source address
777711 Source data
777712 Destination address
777713 Destination data

See also

External links


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

Clones: CM 1420 • SM 1420

Other: FIS floating point • PDP-11 Commercial Instruction Set • PDP-11 stacks • PDP-11 family differences

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