2 – 16
1 | 2 | 3 | 2 | 6 |
31 5 or 8 | ||||
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| 7 |
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| bit0 | bit7 |
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| OPTXD | Command (first) | Command (second) | |
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Power ON |
| OPCLK |
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| |
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| bit0 |
| bit7 | |
Write instruction for LSI | 1 | OPRXD |
| Command response (second) | |
reset | Command response (first) | ||||
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| Note |
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LSI write for LED data, | 2 |
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| |
etc. |
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Read instruction for | 3 | Reset |
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| |
within |
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data read |
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| BU5148S |
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| 4 |
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Response check | NO |
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for OK or NG |
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YES |
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| Error notification | 7 |
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5 |
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| Instruction for | 8 |
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6 | retransmission |
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Note: From the illustration above, you can see that the command and the command response are output at the same time. This is because the bit 0 to bit 3 of OPRXD are fixed so that the response can be returned before decoding the command.
