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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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MT9P006 Fiches technique(PDF) 12 Page - ON Semiconductor |
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MT9P006 Fiches technique(HTML) 12 Page - ON Semiconductor |
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12 / 33 page  MT9P006 www.onsemi.com 12 TWO-WIRE SERIAL INTERFACE SAMPLE WRITE AND READ SEQUENCES 16-Bit WRITE Sequence A typical WRITE sequence for writing 16 bits to a register is shown in Figure 11. A start bit given by the master, followed by the write address, starts the sequence. The image sensor then gives an acknowledge bit and expects the register address to come first, followed by the 16−bit data. After each 8−bit transfer, the image sensor gives an acknowledge bit. All 16 bits must be written before the register is updated. After 16 bits are transferred, the register address is automatically incremented so that the next 16 bits are written to the next register. The master stops writing by sending a start or stop bit. Figure 11. Timing Diagram Showing a WRITE to Reg0x09 with the Value 0x0284 SCLK SDATA START ACK 0xBA ADDR ACK ACK ACK STOP Reg0x09 1000 0100 0000 0010 16-Bit READ Sequence A typical READ sequence is shown in Figure 12. First the master has to write the register address, as in a WRITE sequence. Then a start bit and the read address specify that a READ is about to happen from the register. The master then clocks out the register data 8 bits at a time. The master sends an acknowledge bit after each 8-bit transfer. The register address should be incremented after every 16 bits is transferred. The data transfer is stopped when the master sends a no-acknowledge bit. Figure 12. Timing Diagram Showing a READ to Reg0x09 with the Value 0x0284 SCLK SDATA START ACK 0xBA ADDR 0xBB ADDR 0000 0010 Reg0x09 ACK ACK ACK 1000 0100 NACK START STOP |
Numéro de pièce similaire - MT9P006_17 |
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Description similaire - MT9P006_17 |
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