EXPLANATION OF MICROCOMPUTER
IC861 (LC24072B)2/2
Pin | Signal | I/O | Function | |||
55 | /CS_Q2REG | O | Q2i inside register chip select | |||
56 | ADPCM_SW | I | ADPCM switch | |||
57 | GND | PWR | 0V | |||
58 | /RST_3 | I | Power on reset | |||
59 | CKIO | I | System clock input(39.3216MHz) | |||
60 | GND | PWR | 0V | |||
61 | LVcc | PWR | +3.3V | |||
62 | /FCS | O | Flash memory chip select | |||
63 | /FWE | O | Flash memory write strobe | |||
64 | /DREQ1 | O | DMA request | |||
65 | /DREQ0 | |||||
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66 | /DACK1 | O | DMA acknowledge | |||
67 | /DACK0 | |||||
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68 | /WAIT | O | Wait output | |||
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69 | /CS6 |
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70 | /CS5 | I | Chip select input | |||
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71 | /CS4 | |||||
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72 | /CS0 |
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73 | GND | PWR | 0V | |||
74 | /WE1 | I | Write strobe | |||
75 | /WE0 | |||||
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76 | /RD | I | Read strobe | |||
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77 | SA22 | I | Address bus | |||
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78 | SA5 |
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| I | Address bus | |
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82 | SA1 |
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83 | GND | PWR | 0V | |||
84 | SD0 |
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| I/O | Data bus | |
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89 | SD5 |
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90 | GND | PWR | 0V | |||
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91 | LVcc | PWR | +3.3V | |||
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92 | SD6 |
| Data bus | |||
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99 | SD13 |
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100 | GND | PWR | 0V | |||
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101 | SD14 |
| Data bus | |||
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109 | SD22 |
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110 | GND | PWR | 0V | |||
111 | SD23 |
| Data bus | |||
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119 | SD31 |
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120 | GND | PWR | 0V | |||
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_ 18 _