KDJ11-D CPU - Revision history

Glitch: /* ROM Versions */

2024-07-27T14:09:02Z

‎ROM Versions

Glitch at 14:02, 27 July 2024

2024-07-27T14:02:26Z

Glitch: Adding KDJ11-D ROM information

2024-07-27T14:02:05Z

Adding KDJ11-D ROM information

Glitch at 23:16, 26 July 2024

2024-07-26T23:16:12Z

Glitch: Updating to reflect that the KDJ11-B has a single SLU, and that SLU 1 can be used for TU58

2024-07-26T23:13:55Z

Updating to reflect that the KDJ11-B has a single SLU, and that SLU 1 can be used for TU58

Vaxorcist: DECserver 500 Terminal Server added

2022-08-15T10:01:22Z

DECserver 500 Terminal Server added

Jnc: +img

2022-07-28T22:48:57Z

+img

Jnc: +KDJ11-D/S CPU System Maintenance man, typos

2022-03-29T08:47:33Z

+KDJ11-D/S CPU System Maintenance man, typos

Jnc: /* Versions */ Visual distinction

2022-03-16T03:02:11Z

‎Versions: Visual distinction

Jnc: Created page with "The '''KDJ11-D''' CPU board, formally named the '''KDJ11-D/S''' in the later variant (below), is the third QBUS CPU card using the J-11 chip..."

2022-03-10T16:20:17Z

Created page with "The '''KDJ11-D''' CPU board, formally named the '''KDJ11-D/S''' in the later variant (below), is the third QBUS CPU card using the J-11 chip..."

New page

The '''KDJ11-D''' CPU board, formally named the '''KDJ11-D/S''' in the later variant (below), is the third [[QBUS]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first two being the [[KDJ11-A CPU]] and [[KDJ11-B CPU]]. It is a [[DEC card form factor|quad-height]] board, the '''M7554'''; it is available in the so-called [[S-box]] format, for the [[BA200]] enclosure. It was used in the [[PDP-11/53]].

Its principal difference from the KDJ11-B is that the KDJ11-D does not support the [[Private Memory Interconnect]] [[bus]] (a high-performance variant of the QBUS); instead, it provides either .5MB or 1.5 MB (depending on the exact model) of on-board [[main memory]] (with byte [[parity]]). (Additional memory, up to the 4MB limit of the J-11, can be utilized over the QBUS.)

It also does not support the [[FPJ11 floating point accelerator]] [[integrated circuit|chip]] (used to speed up the [[FP11 floating point|FP11]] implementation in the J-11), and it does not have a [[cache]]. It also only supports level 4 [[interrupt]]s on the QBUS (although requests at other levels are honoured; just treated as if they were level 4).

Similarly to the KDJ11B, it also provides a pair of built-in [[asynchronous serial line|serial]] lines (console and [[printer]]), [[Read-only memory|ROM]]s to contain diagnostic and [[bootstrap]] programs.

==Versions==

The DCJ11-D comes in two quite different main variants; unfortunately, they use the same board number, so a visual inspection is needed to know which variant a particular DCJ11-D board is.

Versions of the early variant all utilize a large number of discrete [[logic]] chips, and hold 512KB of memory. The later, 're-engineered' (as the documentation calls it) variant, has moved most of the logic into two [[gate array]]s (DC7063 for control, and DC7064 for [[data path]]s), which made room for up to 1.5MB of memory.

The following versions of the 'early' variant exist:

* KDJ11-DA; 0.5MB, 15 MHz
* KDJ11-SA; BA200 box, 0.5MB, 15 MHz
* KDJ11-SB; BA200 box, 0.5MB, 18 MHz

The following are the versions of the 're-engineered' variant:

* KDJ11-DA (!); 0.5MB, 15 MHz
* KDJ11-DB; 1.5MB, 15 MHz
* KDJ11-SC; BA200 box, 1.5MB, 15 MHz
* KDJ11-SD; BA200 box, 1.5MB, 18 MHz

==External links==

* [http://www.bitsavers.org/pdf/dec/pdp11/1173/EK-KDJ1D-UG_KDJ11-D_May87.pdf KDJ11-D/S CPU Module User's Guide] (EK-KDJ1B-UG-002)

[[Category: PDP-11 QBUS Processors]]

@@ Line 39: / Line 39: @@
 | DEC Part Number || Version || Socket || Size || Application || Notes
 |-
-| 23-204E5-00 || 1.0 || E26 (High) || 16KB  || [[PDP-11/53]] || Supports only English and Spanish
+| 23-204E5-00 || 1.0 || E26 (High) || 16KB  || [[PDP-11/53]] || Supports only English and Spanish language options
 |-
-| 23-205E5-00 || 1.0 || E34 (Low) || 16KB  || [[PDP-11/53]] || Supports only English and Spanish
+| 23-205E5-00 || 1.0 || E34 (Low) || 16KB  || [[PDP-11/53]] || Supports only English and Spanish language options
 |-
 | 23-261E5-00 || 2.0 || E26 (High) || 16KB  || [[PDP-11/53]] || Multi-language support, latest version

@@ Line 9: / Line 9: @@
 Similarly to the KDJ11-B, it also provides a built-in [[asynchronous serial line|serial]] line for console, and [[Read-only memory|ROM]]s to contain diagnostic and [[bootstrap]] programs. The KDJ11-D provides a second SLU, referred to as SLU 1 or DL1 in the documentation, at base address 17776500Q, vector 300Q. The Module User's Guide suggests that this SLU can be used for a printer, but the base address and vector make SLU 1 usable with default [[TU58]] configurations, whether a real drive or emulated.
-==Versions==
+==Board Versions==
 The KDJ11-D comes in two quite different main variants; unfortunately, they use the same board number, so a visual inspection is needed to know which variant a particular KDJ11-D board is.

← Older revision		Revision as of 14:02, 27 July 2024
Line 31:		Line 31:

	There .5MB/1.5MB versions are easy to tell apart visually: the .5MB cards have only two horizontal rows of [[DRAM]] chips in the large array on the left-hand side; on the 1.5MB cards, all six rows are present.		There .5MB/1.5MB versions are easy to tell apart visually: the .5MB cards have only two horizontal rows of [[DRAM]] chips in the large array on the left-hand side; on the 1.5MB cards, all six rows are present.
		+
		+	==ROM Versions==
		+
		+	The KDJ11-D supports the following ROMs:
		+
		+	{\| class="wikitable"
		+	\| DEC Part Number \|\| Version \|\| Socket \|\| Size \|\| Application \|\| Notes
		+	\|-
		+	\| 23-204E5-00 \|\| 1.0 \|\| E26 (High) \|\| 16KB \|\| [[PDP-11/53]] \|\| Supports only English and Spanish
		+	\|-
		+	\| 23-205E5-00 \|\| 1.0 \|\| E34 (Low) \|\| 16KB \|\| [[PDP-11/53]] \|\| Supports only English and Spanish
		+	\|-
		+	\| 23-261E5-00 \|\| 2.0 \|\| E26 (High) \|\| 16KB \|\| [[PDP-11/53]] \|\| Multi-language support, latest version
		+	\|-
		+	\| 23-262E5-00 \|\| 2.0 \|\| E34 (Low) \|\| 16KB \|\| [[PDP-11/53]] \|\| Multi-language support, latest version
		+	\|}

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

@@ Line 1: / Line 1: @@
 [[Image:KDJ11-D.jpg|200px|thumb|right|KDJ11-D; later variant, 1.5MB version]]
-The '''KDJ11-D''' CPU board, formally named the '''KDJ11-D/S''' in the later variant (below), is the third [[QBUS]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] of the [[KDJ11 CPUs]]. It is a [[DEC card form factor|quad-height]] board, the '''M7554'''; it is available in the so-called [[S-box]] format, for the [[BA200]] enclosure. It was used in the [[PDP-11/53]] and the [[DECserver 500]] [[Terminal Server]].
+The '''KDJ11-D''' CPU board, formally named the '''KDJ11-D/S''' in the later variant (below), is the third [[QBUS]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] of the [[KDJ11 CPUs]]. It is a [[DEC card form factor|quad-height]] board, the '''M7554'''; it is available in the so-called [[S-box]] format, for the [[BA200]] enclosure. It was used in the [[PDP-11/53]] and the [[DECserver 500]] Series [[Terminal Server]].
 Its principal difference from the KDJ11-B is that the KDJ11-D does not support the [[Private Memory Interconnect]] [[bus]] (a high-performance variant of the QBUS); instead, it provides either .5MB or 1.5 MB (depending on the exact model) of on-board [[main memory]] (with byte [[parity]]). (Additional memory, up to the 4MB limit of the J-11, can be utilized over the QBUS.)

@@ Line 7: / Line 7: @@
 It also does not support the [[FPJ11 floating point accelerator]] [[integrated circuit|chip]] (used to speed up the [[FP11 floating point|FP11]] implementation in the J-11), and it does not have a [[cache]]. It also only supports level 4 [[interrupt]]s on the QBUS (although requests at other levels are honoured; just treated as if they were level 4).
-Similarly to the KDJ11-B, it also provides a pair of built-in [[asynchronous serial line|serial]] lines (console and [[printer]]), [[Read-only memory|ROM]]s to contain diagnostic and [[bootstrap]] programs.
+Similarly to the KDJ11-B, it also provides a built-in [[asynchronous serial line|serial]] line for console, and [[Read-only memory|ROM]]s to contain diagnostic and [[bootstrap]] programs. The KDJ11-D provides a second SLU, referred to as SLU 1 or DL1 in the documentation, at base address 17776500Q, vector 300Q. The Module User's Guide suggests that this SLU can be used for a printer, but the base address and vector make SLU 1 usable with default [[TU58]] configurations, whether a real drive or emulated.
 ==Versions==

@@ Line 1: / Line 1: @@
 The '''KDJ11-D''' CPU board, formally named the '''KDJ11-D/S''' in the later variant (below), is the third [[QBUS]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] of the [[KDJ11 CPUs]]. It is a [[DEC card form factor|quad-height]] board, the '''M7554'''; it is available in the so-called [[S-box]] format, for the [[BA200]] enclosure. It was used in the [[PDP-11/53]].
@@ Line 13: / Line 15: @@
 Versions of the early variant all utilize a large number of discrete [[logic]] chips, and hold 512KB of memory. The later, 're-engineered' (as the documentation calls it) variant, has moved most of the logic into two [[gate array]]s (DC7063 for control, and DC7064 for [[data path]]s), which made room for up to 1.5MB of memory.
-The two versions are fairly distinct, visually: in the early variant, with the card oriented with the contact fingers at the bottom, the large DCJ11 CPU chip is placed horizontally in the centre of the card; in the re-engineered variant, it is placed vertically, on the right-hand edge of the card. (The two large chips next to it are the two gate arrays.)
+The two versions are fairly distinct, visually: in the early variant, with the card oriented with the contact fingers at the bottom, the large DCJ11 CPU chip is placed horizontally in the centre of the card; in the re-engineered variant (shown above), it is placed vertically, on the right-hand edge of the card. (The two large chips next to it are the two gate arrays.)
 The following versions of the 'early' variant exist:

@@ Line 12: / Line 12: @@
 Versions of the early variant all utilize a large number of discrete [[logic]] chips, and hold 512KB of memory. The later, 're-engineered' (as the documentation calls it) variant, has moved most of the logic into two [[gate array]]s (DC7063 for control, and DC7064 for [[data path]]s), which made room for up to 1.5MB of memory.
 The following versions of the 'early' variant exist:
@@ Line 25: / Line 27: @@
 * KDJ11-SC; BA200 box, 1.5MB, 15 MHz
 * KDJ11-SD; BA200 box, 1.5MB, 18 MHz
 ==External links==