KA650 CPU - Revision history

Jnc: /* External links */ typo

2026-10-13T11:36:46Z

External links: typo

← Older revision		Revision as of 11:36, 13 October 2026
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	* [http://www.bitsavers.org/pdf/dec/vax/650/ VAX 650] - documentation at [[Bitsavers]]		* [http://www.bitsavers.org/pdf/dec/vax/650/ VAX 650] - documentation at [[Bitsavers]]
	** [http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)		** [http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)
	* [https://www.filibeto.org/dec/mds/mds-2000-01/cd1/CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for ~~VAXCcuster~~ System Configurations] (EK-VAXCT-CG-006)		* [https://www.filibeto.org/dec/mds/mds-2000-01/cd1/CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for VAXCluster System Configurations] (EK-VAXCT-CG-006)

	[[Category: VAX QBUS Processors]]		[[Category: VAX QBUS Processors]]

Jnc: /* External links */ Manx mirror of Antonio's stuff is gone

2026-10-13T11:29:51Z

External links: Manx mirror of Antonio's stuff is gone

← Older revision		Revision as of 11:29, 13 October 2026
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	* [http://www.bitsavers.org/pdf/dec/vax/650/ VAX 650] - documentation at [[Bitsavers]]		* [http://www.bitsavers.org/pdf/dec/vax/650/ VAX 650] - documentation at [[Bitsavers]]
	** [http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)		** [http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)
	* [https://~~manx-docs~~.org/~~collections/antonio~~/~~dec~~/~~MDS~~-2000-01/cd1/CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for VAXCcuster System Configurations] (EK-VAXCT-CG-006)		* [https://www.filibeto.org/dec/mds/mds-2000-01/cd1/CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for VAXCcuster System Configurations] (EK-VAXCT-CG-006)

	[[Category: VAX QBUS Processors]]		[[Category: VAX QBUS Processors]]

Vaxorcist: /* References */ Put link into reference

2023-09-12T06:32:19Z

References: Put link into reference

← Older revision		Revision as of 06:32, 12 September 2023
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	<div id="ref_1">[1] ''CVAX-based Systems'', [[Digital Technical Journal]], Vol. 1 No. 7, August 1988</div>		<div id="ref_1">[1] ''CVAX-based Systems'', [[Digital Technical Journal]], Vol. 1 No. 7, August 1988</div>
	<div id="ref_2">[2] ''VAXcluster Systems: Guidelines for ~~VAXCcuster~~ System Configurations'' (EK-VAXCT-CG-006)</div>		<div id="ref_2">[2] ''[http://www.vaxhaven.com/images/c/c6/EK-VAXCT-CG-006.pdf VAXcluster Systems - Guidelines for VAXcluster System Configurations]'' (EK-VAXCT-CG-006)</div>
	<div id="ref_3">[3] ''650QS Pedestal, BA213 Field Maintenance Print Set'' (MP-02538-01)</div>		<div id="ref_3">[3] ''650QS Pedestal, BA213 Field Maintenance Print Set'' (MP-02538-01)</div>
	<div id="ref_4">[4] ''KA650-AA CPU Module Technical Manual'' (EK-KA650-UG-002)</div>		<div id="ref_4">[4] ''KA650-AA CPU Module Technical Manual'' (EK-KA650-UG-002)</div>

Vaxorcist: "VAXserver" and "VAXstation" usage added

2023-08-18T14:28:57Z

"VAXserver" and "VAXstation" usage added

← Older revision		Revision as of 14:28, 18 August 2023
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	}}		}}

	The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA650 module number is '''M7620'''. [[#ref_4\|[4]]]		The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]], [[VAXserver]], and [[VAXstation]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA650 module number is '''M7620'''. [[#ref_4\|[4]]]

	The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].		The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].

Jnc: 'M7620' is just a redir that comes back here

2023-07-17T10:00:16Z

'M7620' is just a redir that comes back here

← Older revision		Revision as of 10:00, 17 July 2023
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	}}		}}

	The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA650 module number is '''[[M7620]]'''. [[#ref_4\|[4]]]		The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA650 module number is '''M7620'''. [[#ref_4\|[4]]]

	The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].		The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].

Vaxorcist: KA650 module number added

2023-07-17T06:33:33Z

KA650 module number added

← Older revision		Revision as of 06:33, 17 July 2023
Line 32:		Line 32:
	}}		}}

	The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. [[#ref_4\|[4]]]		The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA650 module number is '''[[M7620]]'''. [[#ref_4\|[4]]]

	The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].		The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].

Jnc: No MicroVAX III, improve manual links

2023-03-31T15:42:21Z

No MicroVAX III, improve manual links

← Older revision		Revision as of 15:42, 31 March 2023
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	}}		}}

	The '''KA650''' is the [[Central Processing Unit\|CPU]] used in [[Digital Equipment Corporation\|DEC]]'s [[MicroVAX ~~III~~]]. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. [[#ref_4\|[4]]]		The '''KA650''' is the [[Central Processing Unit\|CPU]] used in several [[Digital Equipment Corporation\|DEC]] [[MicroVAX]] systems. It is a single [[DEC card form factor\|quad]]-height [[printed circuit board\|PCB]] which plugs into a [[QBUS]] [[backplane]]. [[#ref_4\|[4]]]

	The KA650 is implemented using the [[CVAX]] with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].		The KA650 is implemented using the [[CVAX]], with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].

	There are two versions of the KA650:		There are two versions of the KA650:
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	* KA650-B: 23-194E7 and 23-195E7		* KA650-B: 23-194E7 and 23-195E7

	You need different VMS software licenses for the two KA650 versions.		You need different [[VMS]] software licenses for the two KA650 versions.

	For information on KA650 revisions and compatible options see: [[KA650 Revision Control]].		For information on KA650 revisions and compatible options see: [[KA650 Revision Control]].
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	==Memory Subsystem==		==Memory Subsystem==

	The KA650 memory subsystem ~~is detailed elsewhere:~~ [[KA650 Main Memory System]].		The KA650 uses a custom [[main memory]] subsystem, the [[KA650 Main Memory System]].

	{{semi-stub}}		{{semi-stub}}

	== References ==		==References==

	<div id="ref_1">[1] "CVAX-based Systems", Digital Technical Journal, Vol 1 No 7, August 1988. </div>		<div id="ref_1">[1] ''CVAX-based Systems'', [[Digital Technical Journal]], Vol. 1 No. 7, August 1988</div>
			<div id="ref_2">[2] ''VAXcluster Systems: Guidelines for VAXCcuster System Configurations'' (EK-VAXCT-CG-006)</div>
			<div id="ref_3">[3] ''650QS Pedestal, BA213 Field Maintenance Print Set'' (MP-02538-01)</div>
			<div id="ref_4">[4] ''KA650-AA CPU Module Technical Manual'' (EK-KA650-UG-002)</div>

	==External links==		==External links==

	* ~~<div id="ref_2">~~[~~https~~://~~manx-docs~~.org/~~collections/antonio~~/dec/~~MDS-2000-01~~/~~cd1~~/~~CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for VAXCcuster System Configurations~~] ~~(EK~~-~~VAXCT-CG-006)</div>~~		* [http://www.bitsavers.org/pdf/dec/vax/650/ VAX 650] - documentation at [[Bitsavers]]
	* ~~<div id="ref_4">~~[http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)~~</div>~~		** [http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)
	* ~~<div id="ref_3">~~[~~http~~://~~www.bitsavers~~.org/~~pdf~~/dec/~~vax~~/~~650~~/~~MP02538_650QS_sch_Oct89~~.~~pdf 650QS Pedestal, BA213 Field Maintenance Print Set~~] (MP-~~02538~~-01)~~</div>~~		* [https://manx-docs.org/collections/antonio/dec/MDS-2000-01/cd1/CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for VAXCcuster System Configurations] (EK-VAXCT-CG-006)

	[[Category: VAX QBUS Processors]]		[[Category: VAX QBUS Processors]]

Jnc: Give links for manuals

2022-06-17T22:20:27Z

Give links for manuals

← Older revision		Revision as of 22:20, 17 June 2022
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	==Memory Subsystem==		==Memory Subsystem==

	The KA650 memory subsystem is detailed elsewhere: [[KA650 Memory ~~Subsystem~~]].		The KA650 memory subsystem is detailed elsewhere: [[KA650 Main Memory System]].

			{{semi-stub}}

	== References ==		== References ==

	<div id="ref_1">[1] "CVAX-based Systems", Digital Technical Journal, Vol 1 No 7, August 1988. </div>		<div id="ref_1">[1] "CVAX-based Systems", Digital Technical Journal, Vol 1 No 7, August 1988. </div>
	~~<div id="ref_2">[2] VAXcluster Systems. Guidelines for VAXCluster System Configurations. EK-VAXCT-CG-006</div>~~
	~~<div id="ref_3">[3] Field Maintenance Print Set: 650QS Pedestal, BA213. MP-02538-01</div>~~
	~~<div id="ref_4">[4] KA650 CPU Module Technical Manual. EK-KA650-UG.003</div>~~

	~~{{semi~~-~~stub}}~~		==External links==

			* <div id="ref_2">[https://manx-docs.org/collections/antonio/dec/MDS-2000-01/cd1/CLUSTER/VAXCTCG6.PDF VAXcluster Systems: Guidelines for VAXCcuster System Configurations] (EK-VAXCT-CG-006)</div>
			* <div id="ref_4">[http://www.bitsavers.org/pdf/dec/vax/650/EK-KA650-UG-002_KA650-AA_CPU_Module_Technical_Manual_Aug88.pdf KA650-AA CPU Module Technical Manual] (EK-KA650-UG-002)</div>
			* <div id="ref_3">[http://www.bitsavers.org/pdf/dec/vax/650/MP02538_650QS_sch_Oct89.pdf 650QS Pedestal, BA213 Field Maintenance Print Set] (MP-02538-01)</div>

	[[Category: VAX QBUS Processors]]		[[Category: VAX QBUS Processors]]

Vaxorcist: KA650 Revision Control added

2022-06-17T09:32:34Z

KA650 Revision Control added

← Older revision		Revision as of 09:32, 17 June 2022
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	The KA650 is implemented using the [[CVAX]] with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].		The KA650 is implemented using the [[CVAX]] with [[floating point]] [[instruction]] support provided by the [[CFPA]], [[main memory]] control provided by [[CMCTL]], and various system support functions by the [[SSC]].

			There are two versions of the KA650:
			* KA650-A (M7620-A): Time-Sharing CPU
			* KA650-B (M7620-B): Workstation / Server CPU

			The only differences between the two CPUs are the system [[ROM]]s:
			* KA650-A: 23-192E7 and 23-193E7
			* KA650-B: 23-194E7 and 23-195E7

			You need different VMS software licenses for the two KA650 versions.

			For information on KA650 revisions and compatible options see: [[KA650 Revision Control]].

	==Memory Subsystem==		==Memory Subsystem==

Jnc: New name

2022-06-17T07:57:48Z

New name

← Older revision		Revision as of 07:57, 17 June 2022
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	==Memory Subsystem==		==Memory Subsystem==

	The KA650 memory subsystem is detailed elsewhere: [[~~DEC~~ KA650 Memory Subsystem]].		The KA650 memory subsystem is detailed elsewhere: [[KA650 Memory Subsystem]].

	== References ==		== References ==