KDJ11-E CPU - Revision history

Jnc: /* See also */ +KDJ11 PMI/UNIBUS backplane

2024-10-08T12:47:19Z

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2024-02-06T14:41:56Z

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	[[Category: PDP-11 QBUS Processors]]		[[Category: PDP-11 QBUS Processors]]
			[[Category: Private Memory Interconnect]]

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	* [http://www.bitsavers.org/pdf/dec/pdp11/1193/EK-KDJ1E-UG-001_KDJ11-E_CPU_Module_Users_Guide_Jan91.pdf KDJ11-E CPU Module User Guide] (EK-KDJ1E-UG-001)		* [http://www.bitsavers.org/pdf/dec/pdp11/1193/EK-KDJ1E-UG-001_KDJ11-E_CPU_Module_Users_Guide_Jan91.pdf KDJ11-E CPU Module User Guide] (EK-KDJ1E-UG-001)

	~~{{PDP-11}}~~

	[[Category: PDP-11 QBUS Processors]]		[[Category: PDP-11 QBUS Processors]]

Jnc: /* Further reading */ +KDJ11-E CPU System Maintenance Manual

2023-02-20T02:00:10Z

Further reading: +KDJ11-E CPU System Maintenance Manual

← Older revision		Revision as of 02:00, 20 February 2023
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	Like the KDJ11-B, it also provides a built-in serial console, and [[read-only memory\|ROMs]] to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.		Like the KDJ11-B, it also provides a built-in serial console, and [[read-only memory\|ROMs]] to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.

			==Further reading==

			* ''KDJ11-E CPU System Maintenance Manual'' (EK-403AA-MM-001) - not available online

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

Jnc: Narrow category

2022-10-11T20:27:57Z

Narrow category

← Older revision		Revision as of 20:27, 11 October 2022
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	{{PDP-11}}		{{PDP-11}}

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

Jnc: /* External links */ +KDJ11-E User Guide

2022-02-22T15:25:35Z

External links: +KDJ11-E User Guide

← Older revision		Revision as of 15:25, 22 February 2022
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	[[Image:KDJ11-E.jpg\|200px\|thumb\|right\|KDJ11-E M8981]]		[[Image:KDJ11-E.jpg\|200px\|thumb\|right\|KDJ11-E M8981]]

	The '''KDJ11-E''' CPU board ('''M8981''') is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.		The '''KDJ11-E''' CPU board ('''M8981''') is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A CPU\|KDJ11-A]] and [[KDJ11-B CPU\|KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.

	Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte [[main memory]] (depending on the exact model) is on-board, and operates at the speed of the [[cache]] in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.		Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte [[main memory]] (depending on the exact model) is on-board, and operates at the speed of the [[cache]] in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.
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	It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional [[asynchronous serial line]]s.		It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional [[asynchronous serial line]]s.

	Like the KDJ11-B, it also provides a built-in serial console, and [[~~ROM~~]]s to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.		Like the KDJ11-B, it also provides a built-in serial console, and [[read-only memory\|ROMs]] to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.

			==External links==

			* [http://www.bitsavers.org/pdf/dec/pdp11/1193/EK-KDJ1E-UG-001_KDJ11-E_CPU_Module_Users_Guide_Jan91.pdf KDJ11-E CPU Module User Guide] (EK-KDJ1E-UG-001)

	{{PDP-11}}		{{PDP-11}}

Jnc: +links

2020-01-29T22:13:29Z

+links

← Older revision		Revision as of 22:13, 29 January 2020
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	The '''KDJ11-E''' CPU board ('''M8981''') is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.		The '''KDJ11-E''' CPU board ('''M8981''') is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.

	Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte memory (depending on the exact model) is on-board, and operates at the speed of the cache in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.		Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte [[main memory]] (depending on the exact model) is on-board, and operates at the speed of the [[cache]] in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.

	It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional [[asynchronous serial line]]s.		It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional [[asynchronous serial line]]s.

Jnc: +link

2020-01-13T15:08:33Z

+link

← Older revision		Revision as of 15:08, 13 January 2020
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	Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte memory (depending on the exact model) is on-board, and operates at the speed of the cache in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.		Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte memory (depending on the exact model) is on-board, and operates at the speed of the cache in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.

	It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional serial ~~lines~~.		It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional [[asynchronous serial line]]s.

	Like the KDJ11-B, it also provides a built-in serial console, and [[ROM]]s to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.		Like the KDJ11-B, it also provides a built-in serial console, and [[ROM]]s to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.

Jnc: bold board name

2020-01-10T01:07:33Z

bold board name

← Older revision		Revision as of 01:07, 10 January 2020
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	[[Image:KDJ11-E.jpg\|200px\|thumb\|right\|KDJ11-E M8981]]		[[Image:KDJ11-E.jpg\|200px\|thumb\|right\|KDJ11-E M8981]]

	The '''KDJ11-E''' CPU board (M8981) is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.		The '''KDJ11-E''' CPU board ('''M8981''') is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.

	Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte memory (depending on the exact model) is on-board, and operates at the speed of the cache in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.		Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte memory (depending on the exact model) is on-board, and operates at the speed of the cache in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by [[parity]] only.

Jnc: +image

2020-01-10T01:04:19Z

+image

← Older revision		Revision as of 01:04, 10 January 2020
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			[[Image:KDJ11-E.jpg\|200px\|thumb\|right\|KDJ11-E M8981]]

	The '''KDJ11-E''' CPU board (M8981) is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.		The '''KDJ11-E''' CPU board (M8981) is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and second being the the [[KDJ11-A]] and [[KDJ11-B]]). It is a [[DEC card form factor\|quad-height]] board, and is used in the [[PDP-11/93]] and [[PDP-11/94]] systems.

← Older revision		Revision as of 12:47, 8 October 2024
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	Like the KDJ11-B, it also provides a built-in serial console, and [[read-only memory\|ROMs]] to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.		Like the KDJ11-B, it also provides a built-in serial console, and [[read-only memory\|ROMs]] to contain diagnostic and boot programs, and an [[EEPROM]] to contain configuration information. Also like the earlier boards, it uses the [[FPJ11 floating point accelerator]] to speed up the [[FP11 floating point\|FP11]] implementation in the J-11; the FPJ11 is standard on the KDJ11-E.

			==See also==

			* [[KDJ11 PMI/UNIBUS backplane]]

	==Further reading==		==Further reading==