KD11-EA CPU - Revision history

Jnc: better cat, mention KY11-L interface explicitly

2022-03-31T20:47:04Z

better cat, mention KY11-L interface explicitly

Jnc: +No-SACK Timeout Circuitry

2022-03-01T10:32:27Z

+No-SACK Timeout Circuitry

Jnc: /* External links */ online FMPS is missing the Flow Diagram

2022-02-14T15:31:44Z

‎External links: online FMPS is missing the Flow Diagram

Jnc: /* Implementation */ +uword bits, later rev of one

2022-02-11T16:58:54Z

‎Implementation: +uword bits, later rev of one

Jnc: +Internal details

2022-02-10T17:21:53Z

+Internal details

Jnc: /* External links */ +FMPS, manual

2022-01-12T12:54:19Z

‎External links: +FMPS, manual

Jnc: list KY11-LB card

2021-04-21T00:12:01Z

list KY11-LB card

Jnc: Note different machine designation

2021-04-19T11:37:08Z

Note different machine designation

Jnc: details of OYY connector

2021-04-19T11:32:54Z

details of OYY connector

Jnc: +images

2020-06-15T15:55:28Z

+images

@@ Line 95: / Line 95: @@
 ==KY11-LB Interface==
-Like the [[KD11-E CPU|KD11-E]], it also supported the KY11-LB Programmer's Console, including the [[diagnostic]] functionality which allowed the CPU's microcode to be [[single-step]]ped.
+Like the [[KD11-E CPU|KD11-E]], it also supported the KY11-LB Programmer's Console, including the [[diagnostic]] functionality which allowed the CPU's microcode to be [[single-step]]ped. The KD11-EA uses the same [[KY11-L to CPU interface]] as the other machines that use them.
 The interface to the KY11-LB was carried over two 10-wire [[flat cable]]s connected to [[Berg connector]] headers (denominated J1 and J2) on the M8266 module. The [[pinout]] for P1 is the same as for the KD11-E; P2 has additional signals (other than μPC08) added in the KD11-EA, though:
@@ Line 114: / Line 114: @@
 ==No-SACK Timeout Circuitry==
-In the KD11-EA, the No-SACK timeout circuit was moved from the optional [[SACK Timeout module]] to the main CPU (on the M8265 Data Paths module. See Section 4.7.2.4, "No-SACK Timeout Circuitry", of EK-KD1EA-MM for more.
+In the KD11-EA, the 'No-SACK timeout circuit' was moved from the optional [[M8264 No-SACK Timeout Module]] to the main CPU (on the M8265 Data Paths module). See Section 4.7.2.4, "No-SACK Timeout Circuitry", of EK-KD1EA-MM for more.
 ==See also==
@@ Line 120: / Line 120: @@
 * [[KD11-E/EA microcode]]
 * [[KY11-LA Operator's Console]]
 ==External links==
 * [http://www.bitsavers.org/pdf/dec/pdp11/1134/KD11EA_CPU_Maint.pdf KD11-EA central processor maintenance manual] (EK-KD1EA-MM-001)
-* [http://www.bitsavers.org/pdf/dec/pdp11/1134/MP00190_1134A_KD11-EA.pdf 1134A Field Maintenance Print Set] (MP00190) - the microcode 'Flow Diagram' is mostly missing from this copy (see pg. 30 of the PDF); a complete copy of it is in the KD11-E Field Maintenance Print Set, however (they are the same; [[KD11-E/EA microcode#Microcode|errors]] there were exactly replicated in a Flow Diagram in an offline copy of the KD11-EA Field Maintenance Print Set)
+* [http://www.bitsavers.org/pdf/dec/pdp11/1134/MP00190_1134A_KD11-EA.pdf 1134A Field Maintenance Print Set] (MP00190) - the microcode 'Flow Diagram' is mostly missing from this copy (see pg. 30 of the PDF); a complete copy of it is in the KD11-E Field Maintenance Print Set, however (they are the same; [[KD11-E/EA microcode#Microcode|errors]] there were exactly replicated in a Flow Diagram in an offline hard-copy of the KD11-EA Field Maintenance Print Set)
-[[Category: PDP-11 Processors]]
+[[Category: PDP-11 UNIBUS Processors]]

@@ Line 112: / Line 112: @@
 # Unused
 ==See also==
 * [[KD11-E/EA microcode]]
 * [[KY11-LA Operator's Console]]
 ==External links==

@@ Line 120: / Line 120: @@
 * [http://www.bitsavers.org/pdf/dec/pdp11/1134/KD11EA_CPU_Maint.pdf KD11-EA central processor maintenance manual] (EK-KD1EA-MM-001)
-* [http://www.bitsavers.org/pdf/dec/pdp11/1134/MP00190_1134A_KD11-EA.pdf 1134A Field Maintenance Print Set] (MP00190)
+* [http://www.bitsavers.org/pdf/dec/pdp11/1134/MP00190_1134A_KD11-EA.pdf 1134A Field Maintenance Print Set] (MP00190) - the microcode 'Flow Diagram' is mostly missing from this copy (see pg. 30 of the PDF); a complete copy of it is in the KD11-E Field Maintenance Print Set, however (they are the same; [[KD11-E/EA microcode#Microcode|errors]] there were exactly replicated in a Flow Diagram in an offline copy of the KD11-EA Field Maintenance Print Set)
 [[Category: PDP-11 Processors]]
 [[Category: UNIBUS Processors]]

@@ Line 14: / Line 14: @@
 {| class="wikitable"
-! Chip !! [[DEC part number]] !! Bits
+! Chip !! [[DEC part number]] !! Bits !! Function
 |-
-| E97 || 23-022F1 || B, BX, OVX CTL
+| E97 || 23-022F1 || 24-27 || B, BX, OVX CTL
 |-
-| E98 || 23-023F1 || SSMUX CTL, AMUX CTL
+| E98 || 23-023F1 || 28-31 || SSMUX CTL, AMUX CTL
 |-
-| E99 || 23-021F1 || FUNC CODE 01-03
+| E99 || 23-021F1 || 20-23 || FUNC CODE 01-03
 |-
-| E100 || 23-024F1 || ROM SPA 00-03
+| E100 || 23-024F1 || 32-35 || ROM SPA 00-03
 |-
-| E103 || 23-011F1 || FORCE K, BUT SERV, PREV, FORCE RSV1
+| E103 || 23-011F1 || 40-43 || FORCE K, BUT SERV, PREV, FORCE RSV1
 |-
-| E104 || 23-025F1 || SPA SRC SEL0-1, SPA DST SEL0-1
+| E104 || 23-025F1 || 36-39 || SPA SRC SEL0-1, SPA DST SEL0-1
 |-
-| E105 || 23-019A9 || BUT BITS
+| E105 || 23-019A9/23-027F1 || 44-47 || BUT BITS
 |-
-| E106 || 23-020F1 || LOAD BA, LONG CYC, AUX SETUP, FUNC CODE 04
+| E106 || 23-020F1 || 16-19 || LOAD BA, LONG CYC, AUX SETUP, FUNC CODE 04
 |-
-| E107 || 23-019F1 || BUF DAT TRAN, BUF C0/C1, ENAB MAINT
+| E107 || 23-019F1 || 12-15 || BUF DAT TRAN, BUF C0/C1, ENAB MAINT
 |-
-| E108 || 23-018F1 || MPC00, Misc Control
+| E108 || 23-018F1 || 8-11 || MPC00, Misc Control
 |-
-| E109 || 23-017F1 || MPC01-04
+| E109 || 23-017F1 || 4-7 || MPC01-04
 |-
-| E110 || 23-016F1 || MPC05-08 <!--
+| E110 || 23-016F1 || 0-3 || MPC05-08 <!--
 |-
 | E52 || 23-013F1 || -->

@@ Line 5: / Line 5: @@
 The KD11-EA also supported the optional [[FP11-A Floating-Point Processor|FP11-A]] [[floating point]] ([[FP11 floating point]] type) unit and/or the [[KK11-A Cache Memory|KK11-A]] [[cache]] (it could work with either, or both).
-Apparently, the [[microcode]] [[address space]] was increased by one bit in the KD11-EA over the [[KD11-E CPU]], probably to support the extra microcode needed for the [[floating point]] [[instruction]]s.
+The [[microcode]] [[address space]] was increased by one bit in the KD11-EA over the [[KD11-E CPU]], to support the extra microcode needed for the [[floating point]] [[instruction]]s.
 [[Image:KD11-EA M8266.jpg|250px|right|thumb|M8266 Control card]]
 ==FP11-A/KK11-A installation==

@@ Line 1: / Line 1: @@
 [[Image:KD11-EA M8265.jpg|250px|right|thumb|M8265 Data Paths card]]
-The '''KD11-EA CPU''' was the [[Central Processing Unit|CPU]] for the [[PDP-11/34A]] version of the [[PDP-11/34]]; it consisted of two [[DEC card form factor|hex]] [[printed circuit board]]s, the M8265 Data Paths module and the M8266 Control module.
+The '''KD11-EA CPU''' was the [[Central Processing Unit|CPU]] for the [[PDP-11/34A]] version of the [[PDP-11/34]]; it consisted of two [[DEC card form factor|hex]] [[printed circuit board]]s, the '''M8265''' Data Paths module and the '''M8266''' Control module.
 The KD11-EA also supported the optional [[FP11-A Floating-Point Processor|FP11-A]] [[floating point]] ([[FP11 floating point]] type) unit and/or the [[KK11-A Cache Memory|KK11-A]] [[cache]] (it could work with either, or both).
@@ Line 49: / Line 49: @@
 * [[KY11-LA Operator's Console]]
-{{PDP-11}}
+==External links==
 [[Category: PDP-11 Processors]]
 [[Category: UNIBUS Processors]]

@@ Line 21: / Line 21: @@
 If ''both'' an FP11-A ''and'' a KK11-A are plugged in, things become slightly more complex. The FP11-A '''has''' to be mounted in the slot next to the CPU boards, and the KK11-A has to be mounted in the second slot up from that one.
-(The [[KY11-LB Programmer's Console]] is mounted in the slot in the middle; as far as is known, there is nothing special about that slot, and the KY11-LB could just have been moved over one slot, but DEC must have decided that the documentation would be simpler if it were always in the same slot.)
+(The M7859 card for the [[KY11-LB Programmer's Console]] is mounted in the slot in the middle; as far as is known, there is nothing special about that slot, and the KY11-LB card could just have been moved over one slot, but DEC must have decided that the documentation would be simpler if it were always in the same slot.)
 Instead of the two-connector H8821 OTT card, the very similar H8822 OTT card, with three connectors, must be used instead.
@@ Line 47: / Line 47: @@
 * [[KD11-E/EA microcode]]
 {{PDP-11}}

@@ Line 11: / Line 11: @@
 ==FP11-A/KK11-A installation==
-Adding either the FP11-A or KK11-A is fairly simple (provided there is adequate power available); they are plugged into the [[backplane]] slot next to the two CPU boards, and special [[over the back|over the top]] (OTT) connectors in the form of small PCB cards are used to connect them up.
+Adding either the FP11-A or KK11-A is fairly simple (provided there is adequate power available); they are plugged into the CPU's [[DD11-P backplane]] in the slot next to the two CPU boards, and special [[over the back|over the top]] (OTT) connectors in the form of small PCB cards bearing [[Berg connector]]s plug into Berg headers on the two neighbouring cards to connect them up.
 (It is not clear why DEC adopted a design which used the OTT cards, although avoiding them would have required the more-expensive upgrade path of a new backplane; there may also not have been enough spare pins on the edge connectors.)