LSI-11 - Revision history

Jnc: /* External links */ original at Frain Research went offline; add reference to online mirror

2025-05-31T12:37:28Z

‎External links: original at Frain Research went offline; add reference to online mirror

Jnc: First ship date

2023-12-20T20:06:20Z

First ship date

Jnc: /* External links */ +Manuals, Eng Drwngs

2023-02-12T14:07:40Z

‎External links: +Manuals, Eng Drwngs

Jnc: /* External links */ Narrow category

2022-10-11T17:34:52Z

‎External links: Narrow category

Jnc: +KUV11

2020-03-05T00:51:35Z

+KUV11

Jnc: Add image

2020-03-04T15:33:44Z

Add image

Jnc: /* Links */ +see also

2020-03-04T03:34:07Z

‎Links: +see also

Jnc: typo

2019-08-25T14:26:05Z

typo

Jnc: Mention same QBUS limits, ODT

2019-08-19T18:06:11Z

Mention same QBUS limits, ODT

Jnc: Move QBUS info to page for group

2019-08-19T16:27:32Z

Move QBUS info to page for group

@@ Line 35: / Line 35: @@
 ** [http://www.bitsavers.org/pdf/dec/pdp11/1103/1103_Schematics.pdf PDP-11/03 engineering drawings] - includes all KD11 versions
 ** [http://www.bitsavers.org/pdf/dec/pdp11/1103/Titelbaum_LSI-11_1975.pdf The LSI-11 - A System Microcomputer]
-* [http://web.frainresearch.org:8080/projects/pdp-11/lsi-11.php LSI-11 Processors]
+* [http://web.frainresearch.org:8080/projects/pdp-11/lsi-11.php LSI-11 Processors] (mirrored [https://electrickery.nl/comp/pdp11_23plus/frain.rsx11m.io/lsi-11.php here])
 {{PDP-11}}
 [[Category: PDP-11 QBUS Processors]]

@@ Line 1: / Line 1: @@
 [[Image:LSI-11.jpg|250px|thumb|right|M7264 KD11-F board (etch revision F), with KEV11-A]]
-The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit|CPU]], introducing the [[QBUS]], and using the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the same QBUS limitations, and use of [[QBUS CPU ODT|ODT]] for control, as the others.
+The '''LSI-11''', first shipped in the Fall of 1975, was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit|CPU]], introducing the [[QBUS]], and using the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the same QBUS limitations, and use of [[QBUS CPU ODT|ODT]] for control, as the others.
 The LSI-11 is a [[DEC card form factor|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer|OEM]] usage.

← Older revision		Revision as of 14:07, 12 February 2023
Line 31:		Line 31:
	==External links==		==External links==

		+	* [http://www.bitsavers.org/pdf/dec/pdp11/1103/ -11/03] - documentation at [[Bitsavers]]
		+	** [http://www.bitsavers.org/pdf/dec/pdp11/1103/EK-LSI11-TM-002.pdf LSI-11, PDP-11/03 user's manual] (EK-LSI11-TM-002)
		+	** [http://www.bitsavers.org/pdf/dec/pdp11/1103/1103_Schematics.pdf PDP-11/03 engineering drawings] - includes all KD11 versions
		+	** [http://www.bitsavers.org/pdf/dec/pdp11/1103/Titelbaum_LSI-11_1975.pdf The LSI-11 - A System Microcomputer]
	* [http://web.frainresearch.org:8080/projects/pdp-11/lsi-11.php LSI-11 Processors]		* [http://web.frainresearch.org:8080/projects/pdp-11/lsi-11.php LSI-11 Processors]

← Older revision		Revision as of 17:34, 11 October 2022
Line 35:		Line 35:
	{{PDP-11}}		{{PDP-11}}

−	[[Category: PDP-11 ~~Processors]]~~	+	[[Category: PDP-11 QBUS Processors]]
−	~~[[Category:~~ QBUS Processors]]

@@ Line 5: / Line 5: @@
 The LSI-11 is a [[DEC card form factor|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer|OEM]] usage.
-The usual CPU options were available for the LSI-11: the [[KEV11-A floating point|KEV11-A]], for the [[PDP-11 Extended Instruction Set|EIS]]/[[FIS floating point|FIS]] instructions; the [[KEV11-B Extended Instruction Set|KEV11-B]] provides EIS without FIS; the [[KEV11-C Commercial Instruction Set|KEV11-C]] provides a subset of the PDP-11 [[PDP-11 Commercial Instruction Set|CIS]] (it also apparently includes the EIS, but not the FIS).
+The usual CPU options were available for the LSI-11: the [[KEV11-A floating point|KEV11-A]], for the [[PDP-11 Extended Instruction Set|EIS]]/[[FIS floating point|FIS]] instructions; the [[KEV11-B Extended Instruction Set|KEV11-B]] provides EIS without FIS; the [[KEV11-C Commercial Instruction Set|KEV11-C]] provides a subset of the PDP-11 [[PDP-11 Commercial Instruction Set|CIS]] (it also apparently includes the EIS, but not the FIS). It also supported the optional [[KUV11 Writeable Control Store]].
-The [[integrated circuit|chip]] order (from the left, with the contact finger edge down, and the component side facing the viewer) is [[KEV11]], uROM 1, uROM 0, Control, Data Path.
+The [[integrated circuit|chip]] order (from the left, with the contact finger edge down, and the component side facing the viewer) is [[KEV11]], μROM 1, μROM 0, Control, Data Path.
 ==Variant models==

← Older revision		Revision as of 15:33, 4 March 2020
Line 1:		Line 1:
−	The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit\|CPU]], ~~using~~ the [[QBUS]] and the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the [[QBUS]] limitations, and use of [[QBUS CPU ODT\|ODT]] for control, as the others.	+	[[Image:LSI-11.jpg\|250px\|thumb\|right\|M7264 KD11-F board (etch revision F), with KEV11-A]]
		+
		+	The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit\|CPU]], introducing the [[QBUS]], and using the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the same QBUS limitations, and use of [[QBUS CPU ODT\|ODT]] for control, as the others.

	The LSI-11 is a [[DEC card form factor\|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer\|OEM]] usage.		The LSI-11 is a [[DEC card form factor\|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer\|OEM]] usage.

@@ Line 23: / Line 23: @@
 * the KD11-R is a KD11-H sold with an [[MSV11-C QBUS MOS memory]] card
-==Links==
+==See also==
 * [http://web.frainresearch.org:8080/projects/pdp-11/lsi-11.php LSI-11 Processors]

← Older revision		Revision as of 14:26, 25 August 2019
Line 1:		Line 1:
−	The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit\|CPU]], using the [[QBUS]] and the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the ~~same~~ [[QBUS]] limitations, and ~~used~~ of [[QBUS CPU ODT\|ODT]] for control.	+	The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit\|CPU]], using the [[QBUS]] and the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the [[QBUS]] limitations, and use of [[QBUS CPU ODT\|ODT]] for control, as the others.

	The LSI-11 is a [[DEC card form factor\|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer\|OEM]] usage.		The LSI-11 is a [[DEC card form factor\|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer\|OEM]] usage.

← Older revision		Revision as of 18:06, 19 August 2019
Line 1:		Line 1:
−	The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit\|CPU]], using the [[QBUS]] and the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]], ~~using that chip set~~.	+	The '''LSI-11''' was DEC's first cost-reduced [[PDP-11]] [[Central Processing Unit\|CPU]], using the [[QBUS]] and the [[LSI-11 chip set]]. It was the first of the [[LSI-11 CPUs]]; it had the same [[QBUS]] limitations, and used of [[QBUS CPU ODT\|ODT]] for control.

	The LSI-11 is a [[DEC card form factor\|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer\|OEM]] usage.		The LSI-11 is a [[DEC card form factor\|quad]] board (M7264) with additional functionality on-board. They were popular in [[Original Equipment Manufacturer\|OEM]] usage.