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TDA9950 Datasheet(PDF) 21 Page - NXP Semiconductors

Part # TDA9950
Description  CEC/I2C-bus translator
PDF  22 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

TDA9950 Datasheet(HTML) 21 Page - NXP Semiconductors

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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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