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ATA5278-PKQI Datasheet(PDF) 9 Page - ATMEL Corporation |
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ATA5278-PKQI Datasheet(HTML) 9 Page - ATMEL Corporation |
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9 / 34 page  9 4832D–RKE–12/07 ATA5278 Figure 3-7. SPI Timing Diagram 3.7 SPI Commands The microcontroller can access the following functions of the ATA5278 via the SPI: • Read from/write to configuration register 1 • Read from/write to configuration register 2 • Read from the status register • Write LF transmission data to the buffer and start the transmission • Verify the state of the data buffer • Clear the fault memory • Stop the modulator • Enable the power-down mode Table 3-1 on page 10 lists all functions and their definitions. X X XZ X X Input bit 1 Input bit 2 MSB LSB Output bit 2 Output bit 1 Second Possible Serial Timing, S_CLK Polarity 1, Phase 1 First Possible Serial Timing, S_CLK Polarity 0, Phase 0 MSB LSB Z X X Z X LSB MSB Input bit 1 Input bit 2 X ZX MSB LSB Output bit 1 Out bit 2 t DI,setup t S_CLK,h t S_CLK,I t DO,delay t DI,hold S_CS S_CLK S_DI S_DO S_CS S_CLK S_DI S_DO t S_CLK,per t DO,enable t DO,disable t DO,enable t S,CLK,per t DO,delay t DI,hold t DI,setup t S_CLK,I t S_CLK,h t DO,disable |
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