Vector 4 - Page 95

1/Q
portion
of
SBC
Schematic
(Exhibit
VI-2
(D))
Schematic Schematic Schematic Block
Notation Subsystem Page Diagram
Title Number Number(s)
D1 Keyboard Interface Page 3 9, 14
D2 Serial Printer Interface Page 3 11, 16
D3 Modem Interface Page 3 10, 15
D4 Tone Generator Interface Page 3 13, 19
DS Port Decoder 0 Page 3 X
I/O System D6 Port Deccder 1 Page 3 X
D7 Timer Page 3 6
D8 Paralle! Interface Page 3 12
D11 Subsystem Port Registers { Page 3 X
D12 I/0 Data Bus Transceiver Page 3 5
D13 Keyboard Clock Page 3 9
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