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TDA7440 датащи(PDF) 8 Page - STMicroelectronics |
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TDA7440 датащи(HTML) 8 Page - STMicroelectronics |
8 / 17 page TDA7440D 8/17 5 SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: ■ A start condition (S) ■ A chip address byte, containing the TDA7440D ■ A subaddress bytes ■ A sequence of data (N byte + acknowledge) ■ A stop condition (P) ACK = Acknowledge S = Start P = Stop A = Address B = Auto Increment 5.1 EXAMPLES 5.1.1 No Incremental Bus The TDA7440D receives a start condition, the correct chip address, a subaddress with the B = 0 (no in- cremental bus), N-datas (all these data concern the subaddress selected), a stop condition. 5.1.2 Incremental Bus The TDA7440D receive a start conditions, the correct chip address, a subaddress with the B = 1 (incre- mental bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS from "XXX1000" to "XXX1111" of DATA are ignored. The DATA 1 concern the subaddress sent, and the DATA 2 concerns the subaddress sent plus one sent in the loop etc, and at the end it receivers the stop condition. S 1 0 0 0 1 0 0 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D96AU420 X DATA SUBADDRESS DATA 1 to DATA n X X B S 1 0 0 0 1 0 0 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D96AU421 X D3 SUBADDRESS DATA X X 0 D2 D1 D0 S 1 0 0 0 1 0 0 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D96AU422 X D3 SUBADDRESS DATA 1 to DATA n X X 1 D2 D1 D0 |
Аналогичный номер детали - TDA7440 |
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Аналогичное описание - TDA7440 |
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