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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADL6337ACRZD-R7 датащи(PDF) 36 Page - Analog Devices |
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ADL6337ACRZD-R7 датащи(HTML) 36 Page - Analog Devices |
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36 / 53 page  Data Sheet ADL6337 CONFIGURING MULTIPLE CHIPS TO SHARE THE SPI BUS analog.com Rev. E | 36 of 53 Up to eight ADL6337 devices can be addressed using the same 3- or 4-wire SPI, which means no extra CS line is needed for each device. For this capability, the chip address pins (CS_A2, CS_A1, CS_A0) of the ADL6337 are used to identify the chip with the SPI write chip address prefix. See the SPI interface port as shown in Figure 2. The ADL6337 ignores any writes to addresses where the six MSBs are not equal to the chip address as set by the chip address pins. It only accepts access for addresses where the six MSB chip address prefix is equal to the chip address pins. The broadcasting software reset mode in Register 0x000 allows for an exception. All ADL6337 chips on the shared bus can accept a 0x81 software reset in Register 0x000 from the SPI host controller. Figure 120 shows how to configure the chip address pins CS_CA2, CS_CA1, and CS_CA0 with the associated chip address prefix bits. Figure 120. Configuring Multiple Chips to Share the SPI Bus |
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