KY11-A Programmer's Console - Revision history

Jnc: /* External links */ Move KY11-C doc to KC11

2023-07-05T23:41:51Z

‎External links: Move KY11-C doc to KC11

Jnc: /* External links */ +Manual, EngDrw

2023-07-02T19:47:38Z

‎External links: +Manual, EngDrw

Jnc: Link SR

2018-12-03T20:26:14Z

Link SR

Jnc: /* Displays and controls */ typo

2018-12-03T01:44:55Z

‎Displays and controls: typo

Jnc: A pretty good start

2018-12-03T01:43:13Z

A pretty good start

New page

[[Image:pdp1120a.jpg|200px|lright|thumb|Front panel mounted]]

The '''KY11-A Programmer's Console''' is the [[front panel]] for the [[KA11 CPU]] used in the [[PDP-11/20]] and [[PDP-11/15]].

It allows a programmer to display and deposit data in [[main memory]], and start, [[halt]] and [[single-step]] the [[Central Processing Unit|CPU]]; it also displays substantial amount of information as the machine operates.

It consists of a [[DEC card form factor|hex]]-wide [[printed circuit board|board]] containing lights and switches, to which is attached a light shield (a flat plate with holes drilled through it, which prevents light from one light from straying into neighbouring light positions); the whole plugs into the CPU's [[backplane]]. There is also a printed plastic inlay, and a metal bezel which holds the inlay in position, and bolts to the [[BA11-C Mounting Box]] which holds the CPU.

==Displays and controls==

[[Image:PDP-11-20FrontPanel.jpg|400px|left|thumb|Front pane detailsl]]

The 'Address' and 'Data' indicator arrays display memory [[address]]es and data.

The 'Fetch', 'Exec' (Execute), 'Source', and 'Destination' indicators on the right hand side indicate that the CPU's [[state machine]] is in that [[KA11 CPU#State machine|major state]]. In the Source and Destination major states, the two 'Address' lights will count up, depending on the [[PDP-11 architecture#Addressing modes|addressing mode]] of that operand. The 'Run' light indicates that the CPU is [[execute|executing]] [[instruction]]s; the 'Bus' light indicates that a [[peripheral]] is in control of the [[UNIBUS]], either for an [[interrupt]], or performing [[Direct Memory Access|DMA]].

The 'Switch Register' is used to enter both addresses and data.

The 'Load Addr' (Address), 'Exam' (Examine), 'Start', and 'Dep' (Deposit) switches perform the named function. If the CPU is halted, toggling the 'Continue' switch does a variety of things, depending on the position the 'Enable/Halt' switch is in. In the Enable position, the CPU continues operating; in the Halt position, it performs either a single instruction, or single bus cycle, depending on the position of the 'S-Inst/S-Cycle' switch.

{{PDP-11}}

[[Category: PDP-11s]]

@@ Line 23: / Line 23: @@
 * [http://www.bitsavers.org/pdf/dec/pdp11/1120/KY11A_ConsoleManual_Sep1970.pdf/ KY11-A Programmer's Console Manual] (DEC-11-HR7A-D) - includes engineering drawings
 * [http://bitsavers.org/pdf/dec/pdp11/1120/KY11A_ProgConsoleMan.pdf KY11-A programmer's console manual] (DEC-11-HR7B-D)
 [[Category: PDP-11s]]

@@ Line 1: / Line 1: @@
 [[Image:pdp1120a.jpg|200px|lright|thumb|Front panel mounted]]
-The '''KY11-A Programmer's Console''' is the [[front panel]] for the [[KA11 CPU]] used in the [[PDP-11/20]] and [[PDP-11/15]].
+The '''KY11-A Programmer's Console''' is the [[front panel]] for the [[KA11 CPU]] used in the [[PDP-11/20]].
 It allows a programmer to display and deposit data in [[main memory]], and start, [[halt]] and [[single-step]] the [[Central Processing Unit|CPU]]; it also displays substantial amount of information as the machine operates.
@@ Line 18: / Line 18: @@
 The 'Load Addr' (Address), 'Exam' (Examine), 'Start', and 'Dep' (Deposit) switches perform the named function. If the CPU is halted, toggling the 'Continue' switch does a variety of things, depending on the position the 'Enable/Halt' switch is in. In the Enable position, the CPU continues operating; in the Halt position, it performs either a single instruction, or single bus cycle, depending on the position of the 'S-Inst/S-Cycle' switch.
-−
-{{PDP-11}}
+==External links==
 [[Category: PDP-11s]]

@@ Line 15: / Line 15: @@
 The 'Fetch', 'Exec' (Execute), 'Source', and 'Destination' indicators on the right hand side indicate that the CPU's [[state machine]] is in that [[KA11 CPU#State machine|major state]]. In the Source and Destination major states, the two 'Address' lights will count up, depending on the [[PDP-11 architecture#Addressing modes|addressing mode]] of that operand. The 'Run' light indicates that the CPU is [[execute|executing]] [[instruction]]s; the 'Bus' light indicates that a [[peripheral]] is in control of the [[UNIBUS]], either for an [[interrupt]], or performing [[Direct Memory Access|DMA]].
-The 'Switch Register' is used to enter both addresses and data.
+The '[[Switch Register]]' is used to enter both addresses and data.
 The 'Load Addr' (Address), 'Exam' (Examine), 'Start', and 'Dep' (Deposit) switches perform the named function. If the CPU is halted, toggling the 'Continue' switch does a variety of things, depending on the position the 'Enable/Halt' switch is in. In the Enable position, the CPU continues operating; in the Halt position, it performs either a single instruction, or single bus cycle, depending on the position of the 'S-Inst/S-Cycle' switch.

@@ Line 9: / Line 9: @@
 ==Displays and controls==
-[[Image:PDP-11-20FrontPanel.jpg|400px|left|thumb|Front pane detailsl]]
+[[Image:PDP-11-20FrontPanel.jpg|400px|left|thumb|Front pane details]]
 The 'Address' and 'Data' indicator arrays display memory [[address]]es and data.