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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT83SND2CMP3B датащи(PDF) 85 Page - ATMEL Corporation |
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AT83SND2CMP3B датащи(HTML) 85 Page - ATMEL Corporation |
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85 / 241 page  85 4341F–MP3–03/06 AT8xC51SND2C/MP3B Figure 15-7. Dac SPI Interface 15.1.4 DAC Interface SPI Protocol On AUDCDIN, the first bit is a read/write bit. 0 indicates a write operation while 1 is for a read operation. The 7 following bits are used for the register address and the 8 last ones are the write data. For both address and data, the most significant bit is the first one. In case of a read operation, AUDCDOUT provides the contents of the read register, MSB first. The transfer is enabled by the AUDCCS signal active low. The interface is resetted at every ris- ing edge of AUDCCS in order to come back to an idle state, even if the transfer does not succeed. The DAC Interface SPI is synchronized with the serial clock AUDCCLK. Falling edge latches AUDCDIN input and rising edge shifts AUDCDOUT output bits. Note that the DLCK must run during any DAC SPI interface access (read or write). Figure 15-8. DAC SPI Interface Timings rw a6 a5 a4 a3 a2 a1 d7 d6 d5 d3 d7 d6 d5 d4 d1 d0 d2 d3 d0 d1 d2 d4 a0 AUDCDOUT AUDCDIN AUDCCLK AUDCCS Thsdi Tssen Tc Twl Twh Thsen Tssdi AUDCDOUT AUDCDIN AUDCCLK Tdsdo Thsdo AUDCCS |
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