Datenblatt-Suchmaschine für elektronische Bauteile |
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TDA7429T Datenblatt(PDF) 10 Page - STMicroelectronics |
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TDA7429T Datenblatt(HTML) 10 Page - STMicroelectronics |
10 / 20 page SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: A start condition (S) A chip address byte, containing the TDA7429 address A subaddress bytes A sequence of data (N byte + achnowledge) A stop condition (P) ACK = Achnowledge S = Start P = Stop A = Address B = Auto Increment S 100000 A 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU226A B DATA SUBADDRESS DATA 1 to DATA n EXAMPLES No Incremental Bus The TDA7429 receives a start condition, the cor- rect chip address, a subaddress with the MSB = 0 (no incremental bus), N-datas (all these datas concern the subaddress selected), a stop condi- tion. S 100000 A 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU306 0D3 SUBADDRESS DATA X X X D2 D1 D0 Incremental Bus The TDA7429 receive s a start condition, the cor- rect chip address, a subaddress with the MSB = 1 (incremental bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS from ”1XXX1010” to ”1XXX1111” of DATA are ignored. The DATA 1 concern thesubaddress sent, and the DATA 2 concern the subaddress sent plus one in the loop etc, and at the end it receivers the stop condition. S 100000 A 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU307 1D3 SUBADDRESS DATA 1 to DATA n X X X D2 D1 D0 TDA7429S - TDA7429T 10/20 |
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