56 lines
1.8 KiB
Plaintext
56 lines
1.8 KiB
Plaintext
1 NIC* => NC
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2 P1.0/T2 => IC12 P1 => ADC /CS
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3 P1.1/T2EX => IC12 P6 => ADC DO
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4 P1.2 => IC12 P5 => ADC REF
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5 P1.3 => NC
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6 P1.4 => NC
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7 P1.5 => X19 P13 => Buttons 6-10 Select
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8 P1.6 => X20 P14 => Buttons 1-5 Select
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9 P1.7 => NC
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10 RST => IC7 P6 => Power good
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11 P3.0/RxD => X18 P3 => MIDI RX
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12 NIC* => NC
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13 P3.1/TxD => IC4 P9 => MIDI TX
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14 P3.2/INT0 => NC?
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15 P3.3/INT1 => NC?
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16 P3.4/T0 => IC6 P6, IC12 P7 => ADC CLK
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17 P3.5/T1 => IC6 P5
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18 P3.6/WR => IC14 P27
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19 P3.7/RD => IC14 P22
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20 XTAL2 => XTAL
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21 XTAL1 => XTAL
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22 VSS => GND
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23 NIC* => NC
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24 P2.0/A8 => IC14 P25
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25 P2.1/A9 => IC14 P24
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26 P2.2/A10 => IC14 P21
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27 P2.3/A11 => IC14 P23
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28 P2.4/A12 => IC14 P2
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29 P2.5/A13 => IC13 P26
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30 P2.6/A14 => IC14 P1
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31 P2.7/A15 => IC5 P5
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32 PSEN => IC13 P20
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33 ALE => ?
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34 NIC* => NC
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35 EA/VPP => GND
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36 P0.7/AD7 => IC13 P19
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37 P0.6/AD6 => IC13 P18
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38 P0.5/AD5 => IC13 P17
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39 P0.4/AD4 => IC13 P16
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40 P0.3/AD3 => IC13 P15
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41 P0.2/AD2 => IC13 P13 => (Latched by IC9) Decoder A2
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42 P0.1/AD1 => IC13 P12 => (Latched by IC9) Decoder A1
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43 P0.0/AD0 => IC13 P11 => (Latched by IC9) Decoder A0
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44 VCCA => VCC
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IC3: 74HC273D Octal D-type flip-flop
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IC4: 74HC04D Hex inverter
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IC5: 74hc138D 3-to-8 line decoder/demultiplexer; inverting
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IC6: ATMLH716 ?EEPROM?
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IC7: 7705AC Supply-Voltage Supervisor
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IC8: W78C032C microcontroller
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IC9: 74HC373D Octal D-type transparent latch; 3-state
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IC10: 74HC273D Octal D-type flip-flop
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IC11: 74HC273D Octal D-type flip-flop
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IC12: C0832C 8-Bit Analog to Digital Converter
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IC14: KM62256C 64k x 8bit SRAM |