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DS28EC20 Datasheet(PDF) 20 Page - Analog Devices |
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DS28EC20 Datasheet(HTML) 20 Page - Analog Devices |
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20 / 28 page  DS28EC20 Analog Devices, Inc. 20 of 28 Figure 9-1. ROM Functions Flowchart Y From Figure 9, 2nd Part To Memory Functions Flow Chart (Figure 7) Controller TX Bit 0 Controller TX Bit 63 Controller TX Bit 1 RC = 1 DS28EC20 TX CRC Byte DS28EC20 TX Serial Number (6 Bytes) DS28EC20 TX Family Code (1 Byte) Bit 0 Match? Y N Bit 1 Match? Y N Bit 63 Match? Y N DS28EC20 TX Bit 0 DS28EC20 TX Bit 0 Controller TX Bit 0 DS28EC20 TX Bit 1 DS28EC20 TX Bit 1 Controller TX Bit 1 DS28EC20 TX Bit 63 DS28EC20 TX Bit 63 Controller TX Bit 63 RC = 1 Bit 0 Match? Y N Bit 1 Match? Y N Bit 63 Match? Y N To Figure 9, 2nd Part RC = 0 RC = 0 RC = 0 Y Y Y N F0h Search ROM Command? N 55h Match ROM Command? N 33h Read ROM Command? To Figure 9, 2nd Part From Memory Functions Flow Chart (Figure 7) Bus Controller TX ROM Function Command DS28EC20 TX Presence Pulse OD Reset Pulse? N Y OD = 0 Bus Controller TX Reset Pulse From Figure 9, 2nd Part RC = 0 N CCh Skip ROM Command? |
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