EXPLANATION OF MICROCOMPUTER
IC1151 (HD64F3039TEBL18)1/3
PIN | Signal | I/O | Function | ||
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1 | /RST0 |
| O | ATAPI controller/decoder reset | |
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2 | /RST1 |
| O | Servo/data processor reset | |
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3 | SPDRVPS |
| O | Spindle motor driver power save | |
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4 | G |
| O | H : Operation mode, L : Standby | |
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5 | MUTEL |
| O | H : MUTE ON / L : MUTE OFF LcH | |
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6 | MUTER |
| O | H : MUTE ON / L : MUTE OFF RcH | |
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7 | MD2 |
| I | Normally 5V,boot flash writing 0V | |
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8 | LSPEED |
| O | PLL output | |
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9 | FLCNT |
| O | Flash memory output | |
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10 | AUDIO |
| O | AUDIO Disc play : H | |
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11 | /G |
| O | H : Standby,L : Operation mode | |
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12 | VSS |
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| GND |
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13 | D0 | I/O | CPU data bus | ||
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14 | D1 | I/O | CPU data bus | ||
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15 | D2 | I/O | CPU data bus | ||
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16 | D3 | I/O | CPU data bus | ||
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17 | D4 | I/O | CPU data bus | ||
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18 | D5 | I/O | CPU data bus | ||
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19 | D6 | I/O | CPU data bus | ||
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20 | D7 | I/O | CPU data bus | ||
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21 | VCC |
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| +5V |
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22 | HA0 |
| O | CPU address bus | |
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23 | HA1 |
| O | CPU address bus | |
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24 | HA2 |
| O | CPU address bus | |
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25 | HA3 |
| O | CPU address bus | |
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26 | HA4 |
| O | CPU address bus | |
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27 | HA5 |
| O | CPU address bus | |
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28 | HA6 |
| O | CPU address bus | |
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29 | HA7 |
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| NC |
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30 | VSS |
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| GND |
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31 | NC |
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| NC |
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32 | NC |
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| NC |
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33 | LOEJKEY |
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| NC |
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_ 22 _