RH20 MASSBUS controller - Revision history

Jnc: /* External links */ +manuals

2023-11-12T10:59:51Z

‎External links: +manuals

Jnc: rm dup temp

2021-10-14T14:44:05Z

rm dup temp

Jnc: +Implementation, ext links

2021-10-14T14:42:59Z

+Implementation, ext links

Jnc: +cat

2021-04-09T19:44:20Z

+cat

Jnc: Not all KL10's

2019-07-04T11:28:44Z

Not all KL10's

Jnc: Add a bit of detail on what it does, and how

2019-07-04T11:19:49Z

Add a bit of detail on what it does, and how

Larsbrinkhoff: See also, category.

2019-06-24T10:42:04Z

Larsbrinkhoff: Make stub.

2019-06-24T10:31:43Z

Make stub.

New page

An RH20 [[MASSBUS]] controller is a secondary storage device controller for the [[KL10]].

== External links ==

* [http://www.inwap.com/pdp10/rh20.txt Tony in RH20 Land] - An account of Tony Wachs adding RH20 support to TOPS-10.

{{stub}}

@@ Line 18: / Line 18: @@
 * [http://bitsavers.org/pdf/dec/pdp10/KL10/EK-RH20-UD-001_RH20_Unit_Description_Aug76.pdf RH20 Unit Description]
 * [http://bitsavers.org/pdf/dec/pdp10/KL10/MP00056_RH20_Apr81.pdf RH2O Field Maintenance Print Set]
 * [http://www.inwap.com/pdp10/rh20.txt Tony in RH20 Land] - An account of Tony Wachs adding RH20 support to TOPS-10.
 [[Category: MASSBUS Controllers]]
 [[Category: PDP-10 Peripherals]]

@@ Line 19: / Line 19: @@
 * [http://bitsavers.org/pdf/dec/pdp10/KL10/MP00056_RH20_Apr81.pdf RH2O Field Maintenance Print Set]
 * [http://www.inwap.com/pdp10/rh20.txt Tony in RH20 Land] - An account of Tony Wachs adding RH20 support to TOPS-10.
 [[Category: MASSBUS Controllers]]
 [[Category: PDP-10 Peripherals]]

@@ Line 1: / Line 1: @@
 An '''RH20 MASSBUS controller''' is the primary [[secondary storage]] [[device controller]] for the later [[KL10]]s (the ones with so-called 'internal' [[main memory]]). It works with [[MASSBUS]] [[disk]] [[drive]]s and [[magnetic tape drive]]s (such as the [[RP06 disk drive|RP06]], etc, series drives); up to 8 drives per RH20.
-The RH20 is connected to both the E Bus and the C Bus of the KL10; the former to allow the [[Central Processing Unit|CPU]] to control it. and the latter to give the RH20 direct access to the main memory of the system, to allow it to use [[Direct Memory Access|DMA]] to move data directly from devices to main memory, without needing CPU intervention.
+The RH20 is connected to both the [[KL10|E Bus]] and the C Bus of the KL10; the former to allow the [[Central Processing Unit|CPU]] to control it. and the latter to give the RH20 direct access to the main memory of the system, to allow it to use [[Direct Memory Access|DMA]] to move data directly from devices to main memory, without needing CPU intervention.
 ==See also==
@@ Line 9: / Line 16: @@
 == External links ==
 * [http://www.inwap.com/pdp10/rh20.txt Tony in RH20 Land] - An account of Tony Wachs adding RH20 support to TOPS-10.

← Older revision		Revision as of 19:44, 9 April 2021
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	[[Category: MASSBUS Controllers]]		[[Category: MASSBUS Controllers]]
		+	[[Category: PDP-10 Peripherals]]

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-An RH20 [[MASSBUS]] controller is a [[secondary storage]] [[device controller]] for the [[KL10]]. It works with [[MASSBUS]] [[disk]] [[drive]]s and [[magnetic tape drive]]s (such as the [[RP06 disk drive|RP06]], etc, series drives); up to 8 drives per RH10.
+An '''RH20 MASSBUS controller''' is the primary [[secondary storage]] [[device controller]] for the later [[KL10]]s (the ones with so-called 'internal' [[main memory]]). It works with [[MASSBUS]] [[disk]] [[drive]]s and [[magnetic tape drive]]s (such as the [[RP06 disk drive|RP06]], etc, series drives); up to 8 drives per RH20.
-The RH20 is connected to both the E Bus and the C Bus of the KL10; the former to allow the [[Central Processing Unit|CPU]] to control it. and the latter to give the RH20 direct access to the [[main memory]] of the system, to allow it to use [[Direct Memory Access|DMA]] to move data directly from devices to main memory, without needing CPU intervention.
+The RH20 is connected to both the E Bus and the C Bus of the KL10; the former to allow the [[Central Processing Unit|CPU]] to control it. and the latter to give the RH20 direct access to the main memory of the system, to allow it to use [[Direct Memory Access|DMA]] to move data directly from devices to main memory, without needing CPU intervention.
 ==See also==

@@ Line 1: / Line 1: @@
 An RH20 [[MASSBUS]] controller is a secondary storage device controller for the [[KL10]].
 == External links ==
@@ Line 6: / Line 10: @@
 {{stub}}