PRELIMINARY BETA. NOT FOR REDISTRIBUTION.
The Hardware Book is freely distributable but is copyrighted to Joakim Ögren. It may not be modified and re-distributed without the authors permission.
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Chapter 1: Connector Menu ZX Spectrum AY-3-8912 Connector
ZX Spectrum AY-3-8912
Can be found at Sinclair ZX Spectrum's, I think
(At the computer)UNKNOWN CONNECTOR at the computer.PinName Description
1 SOUND C Sound C (Can be tied together with A & B)
2 PORT?
3 VCC +5 VDC
4 SOUND B Sound B (Can be tied together with A & C)
5 SOUND A Sound A (Can be tied together with B & C)
6 GND Ground
7 PORT?
8 PORT?
9 PORT?
10 PORT?
11 PORT?
12 PORT?
13 PORT?
14 CLOCK?
15 CLOCK?
16 RESET Reset
17 A8 Address 8?
18 BDIR?
19 BC2?
20 BC1?
21 D7 Data 7
22 D6 Data 6
23 D5 Data 5
24 D4 Data 4
25 D3 Data 3
26 D2 Data 2
27 D1 Data 1
28 D0 Data 0
Contributor: Joakim Ögren
Source: ZX Spectrum FAQ <http://users.ox.ac.uk/~uzdm0006/Damien/speccy/pinouts.html>
Please send any comments to Joakim Ögren.