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TDA9950 Datasheet(PDF) 21 Page - NXP Semiconductors |
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TDA9950 Datasheet(HTML) 21 Page - NXP Semiconductors |
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21 / 22 page ![]() TDA9950_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 22 October 2009 21 of 22 NXP Semiconductors TDA9950 CEC/I2C-bus translator 17. Tables 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.1 Principal features . . . . . . . . . . . . . . . . . . . . . . . 1 2.2 Additional features . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 5 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 Functional description . . . . . . . . . . . . . . . . . . . 4 8.1 Device addressing . . . . . . . . . . . . . . . . . . . . . . 4 8.2 Configuring the TDA9950 . . . . . . . . . . . . . . . . . 5 8.3 Use of the INT line . . . . . . . . . . . . . . . . . . . . . . 5 8.4 Register descriptions . . . . . . . . . . . . . . . . . . . . 6 8.5 Data register protocol . . . . . . . . . . . . . . . . . . . . 8 8.5.1 CECData.req service . . . . . . . . . . . . . . . . . . . . 9 8.5.2 CECData.cnf service . . . . . . . . . . . . . . . . . . . . 9 8.5.3 CECData.ind service . . . . . . . . . . . . . . . . . . . . 9 8.5.4 CECData.err service. . . . . . . . . . . . . . . . . . . . 10 8.5.5 CECData.ier service . . . . . . . . . . . . . . . . . . . . 10 8.6 Example communication sequences . . . . . . . 11 8.6.1 Notes on writing the CEC Data Registers . . . 12 8.6.2 Notes on reading the CEC Data Registers . . 13 8.7 Using the TDA9950 . . . . . . . . . . . . . . . . . . . . 13 8.7.1 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.7.2 Sending a CEC message. . . . . . . . . . . . . . . . 14 8.7.3 Receiving a CEC message . . . . . . . . . . . . . . 14 9 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 15 10 Static characteristics . . . . . . . . . . . . . . . . . . . 16 11 Dynamic characteristics . . . . . . . . . . . . . . . . . 17 12 Application information . . . . . . . . . . . . . . . . . 17 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 18 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . 19 15 Legal information . . . . . . . . . . . . . . . . . . . . . . 20 15.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 20 15.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 15.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 20 15.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 20 16 Contact information . . . . . . . . . . . . . . . . . . . . 20 17 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 18 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 19 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 18. Figures Fig 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Fig 2. Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . .3 Fig 3. Frame format for the data register protocol . . . . . .8 Fig 4. Host reads TDA9950 Status Register - after setting address pointer. . . . . . . . . . . . . . . . . . . . .11 Fig 5. Host reads TDA9950 Status Register - without setting address pointer (was at 0) . . . . . .11 Fig 6. Host reads CEC Address ACK registers - after setting address pointer . . . . . . . . . . . . . . . .12 Fig 7. Host writes CEC Configuration Register - after setting address pointer . . . . . . . . . . . . . . . .12 Fig 8. Host writes last three CEC Data Registers . . . . .12 Fig 9. Application diagram . . . . . . . . . . . . . . . . . . . . . . .17 Fig 10. Package outline SOT360-1 (TSSOP20). . . . . . . .18 |
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