125 (NORD-1 card)
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125 Shift counter, is a card that is used in the NORD-1 CPU.
This counter keeps track of the number of bits to shift in a shift instruction.
Introduction
The card is made in the standard NORD-1 card format.
| CPU model | Crate position |
|---|---|
| 29 | D01 |
| 35 | D01 |
The logic diagram is documented in drawing 2A25.[1]
Switches and indicators
There are no switches or indicators on this board.
BOM
This list contains the logic circuits used, passive components are not listed.
- 7 x 7400
- 3 x 7402
- 1 x 7410
- 1 x 7420
- 1 x 7430
- 4 x 7450
- 7 x 7472
- 1 x 7473
Reference
- ↑ HARDWARE MANUAL NORD 1
- Hardware in NORD-1 Serial 47