u12,
74(LS)193
4
u13,
u32,
u33
u14,
74(LS)10
3
u40,
u52
u16,
74(LS)00
6
u17,
u37,
u54,
u87,
u55
u19,
74(LS)08
2
u38
u21
74(LS)51
1
u34
74(LS)20
1
u35,
74(LS)86
2
u88
u41,
74157
2
u58
u51,
74(LS)157
3
u80,
u85
u53,
74(LS)04
2
u57
u56,
74(LS)42
2
u70
u60,
74(LS)95
6
u[77:78],
u[81:83]
u[71:74],
74(LS)07
5
u86
u76
i8212
1
u79
i8255
1
28
Содержание CoBra
Страница 20: ...Fig 10 Keyboard schematic 20 ...
Страница 21: ...Fig 11 Keyboard schematic 21 ...
Страница 23: ...Fig 13 Power source schematic 23 ...
Страница 39: ...9 APPENDIX 1 CoBra Microcomputer Schematics 39 ...
Страница 40: ...Fig A1 1 CoBra Microcomputer Central Processing Unit 40 ...
Страница 41: ...Fig A1 2 CoBra Microcomputer Configurator and Selector Circuit 41 ...
Страница 42: ...Fig A1 3 CoBra Microcomputer Read Only Memory Circuit 42 ...
Страница 43: ...Fig A1 4 CoBra Microcomputer DRAM Memory Circuit 43 ...
Страница 44: ...Fig A1 5 CoBra Microcomputer Memory Access Prioritizer and Command Logic 44 ...
Страница 45: ...Fig A1 6 CoBra Microcomputer Video Address Generator Circuit 45 ...
Страница 46: ...Fig A1 7 CoBra Microcomputer Video Address Multiplexer Circuit 46 ...
Страница 47: ...Fig A1 8 CoBra Microcomputer Video Memory Circuit 47 ...
Страница 48: ...Fig A1 9 CoBra Microcomputer Video Sync Pulses Generator Circuit 48 ...
Страница 49: ...Fig A1 10 CoBra Microcomputer Video Signal Shape Generator 49 ...
Страница 50: ...Fig A1 11 CoBra Microcomputer Interfaces 50 ...
Страница 51: ...Fig A1 12 CoBra Microcomputer Voltage Level Adapter Circuits 51 ...
Страница 52: ...Fig A1 13 CoBra Microcomputer Keyboard Interfacing Circuit 52 ...
Страница 53: ...Fig A1 14 CoBra Microcomputer TV Monitor Interfacing Circuit 53 ...
Страница 55: ...10 APPENDIX 2 Flopppy Disk Interface Schematics 55 ...
Страница 56: ...Fig A2 1 Floppy Disk Interface Disk Controller 56 ...
Страница 57: ...Fig A2 2 Floppy Disk Interface Command and Control Signals Generator Circuits 57 ...
Страница 58: ...Fig A2 3 Floppy Disk Interface Write Clock and Digital PLL Circuits 58 ...
Страница 59: ...10 APPENDIX 3 Component Placement on Boards 59 ...
Страница 60: ...60 Fig A3 1 Component Placement on Keyboard Circuit Board ...
Страница 61: ...61 Fig A3 3 Keyboard Circuit Board top layer seen from above keys side ...
Страница 62: ...62 Fig A3 3 Keyboard Circuit Board bottom layer seen from above keys side ...
Страница 63: ...Fig A3 5 Component placement on the floppy interface board 63 ...
