Pin No. | Terminal | In/Out | Function | |
1 ~ 8 | CD0 ~ CD7 | In/Out | Data bus | |
9, 10 | CE1, TRSB | — | Not used | |
11 | GND7 | In | Ground (0 V) source | |
12 | CK16 | Out | Terminal for 24.576 MHz clock check point | |
13 | VCC6 | In | +5 V source | |
14 | CK0 | In | Clock input. Connected to terminal CK16. | |
15 | TCKB | — | Not used | |
16 | VCC1 | In | +5 V source | |
17 | GND1 | In | Ground (0 V) source | |
18, 19 | XT0, XT1 | In/Out | 24.576 MHz clock input/output | |
20 | SGL | In | System control terminal. Single chip system: Open | |
21 | CCSB | In | Chip select signal input | |
22 ~ 25 | CA0 ~ CA3 | In | Address bus | |
26 | CE0 | In | Not used. Connected to ground. | |
27 | CWRB | In | Write enable signal | |
28 | CRDB | In | Read enable signal | |
29 ~ 32 | — | — | Not used | |
33 | RESB | In | Reset signal input | |
34 | TESB | In | Not used. Connected to +5 V. | |
35 ~ 39 | — | — | Not used | |
40 ~ 49 | RD0 ~ RD15 | In | Data bus for the sound source ROM | |
52 ~ 57 | ||||
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50 | VCC2 | In | +5 V source | |
51 | GND2 | In | Ground (0 V) source | |
58 | RA23 | Out | Not used | |
59 | RA22 | Out | Chip select signal for the sound source ROM | |
60 | RA21 | Out | Not used | |
61 ~ 73 | RA0 ~ RA20 | Out | Address bus for the sound source ROM | |
75 ~ 82 | ||||
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74 | GND5 | In | Ground (0 V) source | |
83 | WOK2 | Out | Not used | |
84 | VCC3 | In | +5 V source | |
85 | GND3 | In | Ground (0 V) source | |
86 | WOK1 | Out | Word clock for the DAC | |
87 | SOLM | Out | Not used | |
88 | SOLP | Out | Serial sound data output | |
89 | BOK | Out | Bit clock output | |
90 ~ 92 | — | — | Not used | |
93 | VCC5 | In | +5 V source | |
94, 95 |
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97 ~ 105 | EA0 ~ EA14 | Out | Address bus for the effect RAM | |
107, 109 | ||||
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110, 112 |
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96 | EWEB | Out | Write enable signal for the effect RAM |
— 8 —
