RK11-C disk controller: Difference between revisions

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* M795 - Word Count and Current Memory Address
* M795 - Word Count and Current Memory Address
===Module Utilization Chart===
The Flip Chip module utilization chart for the RK11-C backplane is as follows (* = Connector):
{| class="wikitable"
! Slot !! A !! B !! C !! D
|-
| 1 || colspan="2" style="text-align:center;" | UNIBUS in
|-
| 2 || colspan="2" style="text-align:center;" | UNIBUS out
|-
| 3
|-
| 4
|-
| 5 || M105 || M784
|-
| 6 || M782 || M79
|-
| 7 || colspan="2" style="text-align:center;" | M795
|-
| 8 || M784 || M784
|-
| 9 ||  ||  || M623 || M307
|-
| 10 || colspan="2" style="text-align:center;" | Disk bus 2* || M623 || M307
|-
| 11 ||  ||  || M623 || M307
|-
| 12 || colspan="2" style="text-align:center;" | Disk bus 1* || M207 || M163
|-
| 13 || M798 || G736 || G740 || M405
|-
| 14 || M149 || M149 || M116 || M161
|-
| 15 || M149 || M149 || M304 || M119
|-
| 16 || M149 || M149 || M113 || M113
|-
| 17 || M239 || M238 || M216 || M141
|-
| 18 || M239 || M214 || M115 || M115
|-
| 19 || M214 || M214 || M121 || M112
|-
| 20 || M208 || M208 || M111 || M111
|-
| 21 || M203 || M203 || M112 || M112
|-
| 22 || M149 || M149 || M205 || M117
|-
| 23 || M149 || M149 || M203 || M203
|-
| 24 || M121 || M002 || M116 || M115
|-
| 25 || M216 || M797 || M611 || M617
|-
| 26 || M141 || M119 || M113 || M304
|-
| 27 || M304 || M112 || M112 || M113
|-
| 28 || M236 || M121 || M216 || M216
|-
| 29 || M205 || || M117 || M117
|-
| 30 || colspan="2" style="text-align:center;" | W130* || M113 || M113
|-
| 31 || colspan="2" style="text-align:center;" | 6775* || M113 || M205
|-
| 32 || colspan="2" style="text-align:center;" | 6775* || M116 || M216
|}
W130 = Maintenance board
<br>
6775 = Cable to indicator panel
==Double Buffered RK11-C module count/location tables==
The following tables give a listing of the Flip Chips used in the Double Buffered variant of the RK11-C, and their location in the backplane.
===Module counts===
(Drawn from module count chart):
Single height boards:
* G736
* G740
* M002
* M105
* M111 2
* M112 5
* M113 7
* M115 3
* M116 3
* M117 3
* M119 2
* M121 3
* M141 2
* M149 10
* M161
* M163
* M203 4
* M205 3
* M207
* M208 2
* M214 3
* M216 5
* M236
* M238
* M239 2
* M304 3
* M307 3
* M405
* M611
* M617
* M623 3
* M782
* M784 3
* M796
* M797
* M798
Double height boards:
* M795


===Module Utilization Chart===
===Module Utilization Chart===

Revision as of 14:43, 19 November 2016

The RK11-C is the earliest version of the RK11 disk controller. (Nothing is known of the -A and -B, if they ever existed as products.)

Like many of the earlier large peripheral controllers for the PDP-11, it was a large custom wire-wrapped backplane which bolted into the front of a 19 inch rack, such as an H960; into it plugged about 40 small M-Series FLIP CHIPs.

The backplane is wired for connection to a standard DEC indicator panel, but no inlay for such has even been sighted, although the RK11-C Engineering Drawings allow one to work out exactly what such an inlay would have looked like.

There is also a rare variant of the RK11-C, the 'Double Buffer' RK11-C.

RK11-C module count/location tables

The following tables give a listing of the Flip Chips used in the RK11-C, and their location in the backplane.

Module counts

(Drawn from module utilization drawing, confirmed in module count chart):

Single height boards:

Type Count Function
G736 Jumper
G740 Disk selection
M002 15 Loads
M105 Address selector
M111 2 Inverter
M112 5 NOR gate
M113 7 10 x 2-Input NAND gates
M115 3 8 x 3-Input NAND gates
M116 3 6 x 4-Input NOR gates
M117 3 6 x 4-Input NAND gates
M119 2 3 x 8-Input NAND gates
M121 3 AND-NOR gates
M141 2 AND/NOR gates
M149 10 9x12 NAND wired OR matric
M161 Binary to octal/decimal decoder
M163 Dual binary to decimal decoder
M203 4 SR flip-flops
M205 3 5 x 'D' flip-flops
M207 Flip-flops (3-3 configuration)
M208 2 Buffer shift register
M214 3 Data storage register
M216 5 6 x flip-flops
M236 12-bit binary up/down counter
M238 Synchronous 4-bit up/down counter
M239 2 3 x 4-bit up/down counter/register
M304 3 One shot delay
M307 3 Integrating one shot
M405 Crystal clock
M611 High speed power inverter
M617 6 x 4-input NOR buffers
M623 3 Bus driver
M782 Interrupt control
M784 3 UNIBUS receivers
M796 UNIBUS master control
M797 Register select
M798 UNIBUS drivers

Double height boards:

  • M795 - Word Count and Current Memory Address

Module Utilization Chart

The Flip Chip module utilization chart for the RK11-C backplane is as follows (* = Connector):

Slot A B C D
1 UNIBUS in
2 UNIBUS out
3
4
5 M105 M784
6 M782 M79
7 M795
8 M784 M784
9 M623 M307
10 Disk bus 2* M623 M307
11 M623 M307
12 Disk bus 1* M207 M163
13 M798 G736 G740 M405
14 M149 M149 M116 M161
15 M149 M149 M304 M119
16 M149 M149 M113 M113
17 M239 M238 M216 M141
18 M239 M214 M115 M115
19 M214 M214 M121 M112
20 M208 M208 M111 M111
21 M203 M203 M112 M112
22 M149 M149 M205 M117
23 M149 M149 M203 M203
24 M121 M002 M116 M115
25 M216 M797 M611 M617
26 M141 M119 M113 M304
27 M304 M112 M112 M113
28 M236 M121 M216 M216
29 M205 M117 M117
30 W130* M113 M113
31 6775* M113 M205
32 6775* M116 M216

W130 = Maintenance board
6775 = Cable to indicator panel

Double Buffered RK11-C module count/location tables

The following tables give a listing of the Flip Chips used in the Double Buffered variant of the RK11-C, and their location in the backplane.

Module counts

(Drawn from module count chart):

Single height boards:

  • G736
  • G740
  • M002
  • M105
  • M111 2
  • M112 5
  • M113 7
  • M115 3
  • M116 3
  • M117 3
  • M119 2
  • M121 3
  • M141 2
  • M149 10
  • M161
  • M163
  • M203 4
  • M205 3
  • M207
  • M208 2
  • M214 3
  • M216 5
  • M236
  • M238
  • M239 2
  • M304 3
  • M307 3
  • M405
  • M611
  • M617
  • M623 3
  • M782
  • M784 3
  • M796
  • M797
  • M798

Double height boards:

  • M795

Module Utilization Chart

The Flip Chip module utilization chart for the RK11-C backplane is as follows (* = Connector):

Slot A B C D
1 UNIBUS in
2 UNIBUS out
3
4
5 M105 M784
6 M782 M79
7 M795
8 M784 M784
9 M623 M307
10 Disk bus 2* M623 M307
11 M623 M307
12 Disk bus 1* M207 M163
13 M798 G736 G740 M405
14 M149 M149 M116 M161
15 M149 M149 M304 M119
16 M149 M149 M113 M113
17 M239 M238 M216 M141
18 M239 M214 M115 M115
19 M214 M214 M121 M112
20 M208 M208 M111 M111
21 M203 M203 M112 M112
22 M149 M149 M205 M117
23 M149 M149 M203 M203
24 M121 M002 M116 M115
25 M216 M797 M611 M617
26 M141 M119 M113 M304
27 M304 M112 M112 M113
28 M236 M121 M216 M216
29 M205 M117 M117
30 W130* M113 M113
31 6775* M113 M205
32 6775* M116 M216

W130 = Maintenance board
6775 = Cable to indicator panel

Documentation

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