RF11 disk controller - Revision history

Jnc: +manual, prints, physical layout

2021-12-08T21:52:43Z

+manual, prints, physical layout

Jnc: Use octal reg template

2018-04-15T16:05:07Z

Use octal reg template

Jnc: Have an article for that...

2018-04-14T19:10:51Z

Have an article for that...

Jnc: Mention reason for word-addressability

2018-04-14T19:00:50Z

Mention reason for word-addressability

Jnc: /* Device registers */ Add register details

2018-04-14T18:57:38Z

‎Device registers: Add register details

Jnc: Add register list

2018-04-14T13:48:38Z

Add register list

Jnc: Jnc moved page RF11 to RF11 disk controller: Follow system

2018-04-14T13:25:04Z

Jnc moved page RF11 to RF11 disk controller: Follow system

Toresbe: cap

2007-05-17T01:33:39Z

cap

Toresbe at 03:12, 16 May 2007

2007-05-16T03:12:50Z

FireflyST at 23:27, 15 May 2007

2007-05-15T23:27:32Z

@@ Line 1: / Line 1: @@
-The '''RF11''' [[controller]] from [[Digital Equipment Corporation|DEC]] for the [[UNIBUS]] is an early [[secondary storage]] controller for the [[PDP-11]]. It can interface with up to eight [[RS11 disk drive|RS11]] [[fixed-head disk]] drives; each has a capacity of 512 Kbytes of storage.
+The '''RF11''' [[device controller]] from [[Digital Equipment Corporation|DEC]] for the [[UNIBUS]] is an early [[secondary storage]] controller for the [[PDP-11]]. It can interface with up to eight [[RS11 disk drive|RS11]] [[fixed-head disk]] drives; each has a capacity of 512 Kbytes of storage.
 Unlike all other DEC disk controllers, the RF11 can read or write individual words; this was itended to allow optimal use of both disk space and [[main memory]] (e.g. during [[swapping]]).
-Like many of the early large [[peripheral]] controllers for the [[PDP-11]], it was a large custom [[wire-wrap]]ped [[backplane]] which bolted into the front of a 19 inch rack, such as an [[H960]]; into it plugged about 40 small M-Series [[FLIP CHIP]]s.
+Like many of the early large [[peripheral]] controllers for the [[PDP-11]], it was a large custom [[wire-wrap]]ped [[backplane]] which bolted into the front of a 19 inch rack, such as an [[H960 rack|H960]]; into it plugged about 40 small M-Series [[FLIP CHIP]]s.
 ==Device registers==
@@ Line 68: / Line 70: @@
 | colspan=5 | Unused || colspan=11 | Disk Segment Address
 {{16bitoctal-bitout}}
 [[Category: UNIBUS Storage Controllers]]

@@ Line 35: / Line 35: @@
 {{16bit-header}}
 | colspan=16 | WC15 <---> WC00
-{{16bit-bitout}}
+{{16bitoctal-bitout}}
 ===777464: Current Memory Address Register (CMA)===
 {{16bit-header}}
 | colspan=15 | BA15 <---> BA01 || Unused
-{{16bit-bitout}}
+{{16bitoctal-bitout}}
 ===777466: Disk Address Register (DAR)===
 {{16bit-header}}
 | colspan=5 | Track Address || colspan=11 | Word Address
-{{16bit-bitout}}
+{{16bitoctal-bitout}}
 ===777470: Disk Address Extension Error Register (DAR)===
@@ Line 57: / Line 57: @@
 {{16bit-header}}
 | colspan=16 | DB15 <---> DB00
-{{16bit-bitout}}
+{{16bitoctal-bitout}}
 ===777474: Maintenance Register (MA)===
@@ Line 67: / Line 67: @@
 {{16bit-header}}
 | colspan=5 | Unused || colspan=11 | Disk Segment Address
-{{16bit-bitout}}
+{{16bitoctal-bitout}}
 [[Category: UNIBUS Storage Controllers]]

@@ Line 1: / Line 1: @@
-The '''RF11''' controller from [[Digital Equipment Corporation|DEC]] for the [[UNIBUS]] is an early [[secondary storage]] controller for the [[PDP-11]]. It can interface with up to eight [[RS11 disk drive|RS11]] fixed-[[head]] [[magnetic storage|magnetic]] [[disk]] drives; each has a capacity of 512 Kbytes of storage.
+The '''RF11''' [[controller]] from [[Digital Equipment Corporation|DEC]] for the [[UNIBUS]] is an early [[secondary storage]] controller for the [[PDP-11]]. It can interface with up to eight [[RS11 disk drive|RS11]] [[fixed-head disk]] drives; each has a capacity of 512 Kbytes of storage.
 Unlike all other DEC disk controllers, the RF11 can read or write individual words; this was itended to allow optimal use of both disk space and [[main memory]] (e.g. during [[swapping]]).
-Like many of the early large peripheral controllers for the [[PDP-11]], it was a large custom [[wire-wrap]]ped [[backplane]] which bolted into the front of a 19 inch rack, such as an [[H960]]; into it plugged about 40 small M-Series [[FLIP CHIP]]s.
+Like many of the early large [[peripheral]] controllers for the [[PDP-11]], it was a large custom [[wire-wrap]]ped [[backplane]] which bolted into the front of a 19 inch rack, such as an [[H960]]; into it plugged about 40 small M-Series [[FLIP CHIP]]s.
 ==Device registers==

@@ Line 1: / Line 1: @@
 The '''RF11''' controller from [[Digital Equipment Corporation|DEC]] for the [[UNIBUS]] is an early [[secondary storage]] controller for the [[PDP-11]]. It can interface with up to eight [[RS11 disk drive|RS11]] fixed-[[head]] [[magnetic storage|magnetic]] [[disk]] drives; each has a capacity of 512 Kbytes of storage.
-Unlike all other DEC disk controllers, the RF11 can read or write individual words.
+Unlike all other DEC disk controllers, the RF11 can read or write individual words; this was itended to allow optimal use of both disk space and [[main memory]] (e.g. during [[swapping]]).
 Like many of the early large peripheral controllers for the [[PDP-11]], it was a large custom [[wire-wrap]]ped [[backplane]] which bolted into the front of a 19 inch rack, such as an [[H960]]; into it plugged about 40 small M-Series [[FLIP CHIP]]s.

← Older revision		Revision as of 18:57, 14 April 2018
Line 27:		Line 27:
	\|}		\|}

		+	===777460: Disk Control Status Register (DCS)===
		+	{{16bit-header}}
		+	\| Error \|\| Freeze \|\| Write Check \|\| Data Parity \|\| NXD \|\| Write Lockout\|\| Missed Xfer \|\| Disk Clear \|\| Control Ready \|\| Interrupt Enable \|\| colspan=2 \| Ext Mem \|\| Maintenance \|\| colspan=2 \| Function Register \|\| Go
		+	{{16bit-bitout}}
		+
		+	===777462: Word Count Register (WC)===
		+	{{16bit-header}}
		+	\| colspan=16 \| WC15 <---> WC00
		+	{{16bit-bitout}}
		+
		+	===777464: Current Memory Address Register (CMA)===
		+	{{16bit-header}}
		+	\| colspan=15 \| BA15 <---> BA01 \|\| Unused
		+	{{16bit-bitout}}
		+
		+	===777466: Disk Address Register (DAR)===
		+	{{16bit-header}}
		+	\| colspan=5 \| Track Address \|\| colspan=11 \| Word Address
		+	{{16bit-bitout}}
		+
		+	===777470: Disk Address Extension Error Register (DAR)===
		+	{{16bit-header}}
		+	\| Address Parity \|\| colspan=3 \| Timing Track Error \|\| Unused \|\| NXM \|\| Unused \|\| Current Memory \|\| Data Req Late \|\| Unused \|\| Disk Addr Ovflo \|\| colspan=3 \| Disk Address \|\| colspan=2 \| Track Address
		+	{{16bit-bitout}}
		+
		+	The low five bits of this register are actually an extension to the Disk Address Register (above).
		+
		+	===777472: Data Buffer Register (DBR)===
		+	{{16bit-header}}
		+	\| colspan=16 \| DB15 <---> DB00
		+	{{16bit-bitout}}
		+
		+	===777474: Maintenance Register (MA)===
		+	{{16bit-header}}
		+	\| colspan=3 \| Unused \|\| Data \|\| colspan=3 \| Timing \|\| Unused \|\| colspan=2 \| Data Track \|\| colspan=2 \| Timing C \|\| colspan=2 \| Timing B \|\| colspan=2 \| Timing A
		+	{{16bit-bitout}}
		+
		+	===777476: Address of Disk Segment Register (ADS)===
		+	{{16bit-header}}
		+	\| colspan=5 \| Unused \|\| colspan=11 \| Disk Segment Address
		+	{{16bit-bitout}}
	[[Category: UNIBUS Storage Controllers]]		[[Category: UNIBUS Storage Controllers]]

← Older revision		Revision as of 13:48, 14 April 2018
Line 1:		Line 1:
−	The [[DEC]] ~~RF11~~ is the ~~controller used to~~ interface with up to eight [[RS11]] fixed-head ~~fixed-platter~~ drives~~. It occupies the top of a H960 cabinet and~~ has a ~~wire wrapped backplane~~.	+	The '''RF11''' controller from [[Digital Equipment Corporation\|DEC]] for the [[UNIBUS]] is an early [[secondary storage]] controller for the [[PDP-11]]. It can interface with up to eight [[RS11 disk drive\|RS11]] fixed-[[head]] [[magnetic storage\|magnetic]] [[disk]] drives; each has a capacity of 512 Kbytes of storage.

−	[[~~Category: DEC Storage Controllers~~]][[Category: UNIBUS Storage Controllers]]	+	Unlike all other DEC disk controllers, the RF11 can read or write individual words.
		+
		+	Like many of the early large peripheral controllers for the [[PDP-11]], it was a large custom [[wire-wrap]]ped [[backplane]] which bolted into the front of a 19 inch rack, such as an [[H960]]; into it plugged about 40 small M-Series [[FLIP CHIP]]s.
		+
		+	==Device registers==
		+
		+	{\| border=1
		+	! Register !! Abbreviation !! Address
		+	\|-
		+	\|Disk Control Status Register \|\| DCS \|\| 777460
		+	\|-
		+	\|Word Count Register \|\| WC \|\| 777462
		+	\|-
		+	\|Current Memory Address \|\| CMA \|\| 777464
		+	\|-
		+	\|Disk Address Register \|\| DAR \|\| 777466
		+	\|-
		+	\|Disk Address Extension Error Register \|\| DAE \|\| 777470
		+	\|-
		+	\|Data Buffer Register \|\| DBR \|\| 777472
		+	\|-
		+	\|Maintenance Register \|\| MA \|\| 777474
		+	\|-
		+	\|Address of Disk Segment Register \|\| ADS \|\| 777476
		+	\|}
		+
		+	[[Category: UNIBUS Storage Controllers]]

← Older revision	Revision as of 13:25, 14 April 2018
(No difference)

← Older revision		Revision as of 01:33, 17 May 2007
Line 1:		Line 1:
	The [[DEC]] RF11 is the controller used to interface with up to eight [[RS11]] fixed-head fixed-platter drives. It occupies the top of a H960 cabinet and has a wire wrapped backplane.		The [[DEC]] RF11 is the controller used to interface with up to eight [[RS11]] fixed-head fixed-platter drives. It occupies the top of a H960 cabinet and has a wire wrapped backplane.

−	[[Category: DEC ~~storage controllers~~]][[Category: UNIBUS ~~storage controllers~~]]	+	[[Category: DEC Storage Controllers]][[Category: UNIBUS Storage Controllers]]

← Older revision		Revision as of 03:12, 16 May 2007
Line 1:		Line 1:
	The [[DEC]] RF11 is the controller used to interface with up to eight [[RS11]] fixed-head fixed-platter drives. It occupies the top of a H960 cabinet and has a wire wrapped backplane.		The [[DEC]] RF11 is the controller used to interface with up to eight [[RS11]] fixed-head fixed-platter drives. It occupies the top of a H960 cabinet and has a wire wrapped backplane.
		+
		+	[[Category: DEC storage controllers]][[Category: UNIBUS storage controllers]]

← Older revision		Revision as of 23:27, 15 May 2007
Line 1:		Line 1:
−	The [[DEC]] RF11 ~~was~~ the controller used to interface with up to eight [[RS11]] fixed-head fixed-platter drives. It occupies the top of a H960 cabinet and has a wire wrapped backplane.	+	The [[DEC]] RF11 is the controller used to interface with up to eight [[RS11]] fixed-head fixed-platter drives. It occupies the top of a H960 cabinet and has a wire wrapped backplane.