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DS1921G Datasheet(PDF) 23 Page - Maxim Integrated Products |
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DS1921G Datasheet(HTML) 23 Page - Maxim Integrated Products |
23 / 42 page Thermochron iButton ______________________________________________________________________________________ 23 FROM FIGURE 10a TO FIGURE 10a TO FIGURE 10c FROM FIGURE 10c A5h READ MEMORY WITH CRC N Y Y N MASTER Tx RESET? CRC OK? MASTER Tx TA1 [T7:T0], TA2 [T15:T8] DS1921G SETS EMCLR = 0 MASTER Rx DATA BYTE FROM MEMORY ADDRESS MASTER Tx RESET DS1921G SETS MEMORY ADDRESS = [T15:T0] Y Y N N END OF PAGE? DECISION MADE BY MASTER DECISION MADE BY DS1921G Y N N END OF MEMORY? MASTER Rx "0" MASTER Rx CRC-16 OF COMMAND, ADDRESS, DATA (1ST PASS); CRC-16 OF DATA (SUBSEQUENT PASSES) DS1921G INCREMENTS ADDRESS COUNTER N Y DS1921G CLEARS ALARM TIMESTAMPS AND DURATIONS MASTER Tx RESET? Y DS1921G CLEARS MISSION TIMESTAMP, MISSION SAMPLES COUNTER, MISSION START DELAY, SAMPLE RATE REGISTER 3Ch CLEAR MEMORY N Y DS1921G CLEARS HISTOGRAM MEMORY DS1921G SETS EMCLR = 0 DS1921G SETS MEMCLR = 1 EMCLR = 1? DS1921G SETS EMCLR = 0 DS1921G SETS MEMORY ADDRESS = [T15:T0] DS1921G INCREMENTS ADDRESS COUNTER F0h READ MEMORY? N Y Y N Y N MASTER Tx RESET? END OF MEMORY? MASTER Rx TA1 [T7:T0], TA2 [T15:T8] MASTER Rx DATA BYTE FROM MEMORY ADDRESS MASTER Rx 00 BYTE Figure 10b. Memory/Control Function Flowchart |
Similar Part No. - DS1921G |
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Similar Description - DS1921G |
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