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TDA9983BHW/8/C1 bảng dữ liệu(PDF) 76 Page - NXP Semiconductors |
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TDA9983BHW/8/C1 bảng dữ liệu(HTML) 76 Page - NXP Semiconductors |
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76 / 119 page ![]() TDA9983B_1 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 01 — 20 May 2008 76 of 119 NXP Semiconductors TDA9983B 150 MHz pixel rate HDMI transmitter 9.6.4 Audio InfoFrame registers Below is an example of use. Please refer to EIA/CEA-861B specification and HDMI 1.2a specification for the correct definition of data bytes. 7Ch SPD_IF_BYTE25 7 to 0 SPD_IF_SDI[7:0] R/W source product description InfoFrame source device information: source device information 00h* unknown 01h digital STB 02h DVD 03h D-VHS 04h HDD video 05h DVC 06h DSC 07h video CD 08h game 09h PC general source product description InfoFrame data byte 7Dh SPD_IF_BYTE26 7 to 0 SPD_IF_BYTE26[7:0] R/W 00h* data byte 26 7Eh SPD_IF_BYTE27 7 to 0 SPD_IF_BYTE27[7:0] R/W 00h* data byte 27 Table 86. SPD_IF_xx registers (address 60h to 7Eh) bit description …continued Legend: * = default value Address Register Bit Symbol Access Value Description Table 87. AUD_IF_xx registers (address 80h to 9Eh) bit description Legend: * = default value Address Register Bit Symbol Access Value Description 80h AUD_IF_TYPE 7 to 0 AUD_IF_TYPE[7:0] R/W 84h* audio InfoFrame packet type: gives the packet type of the audio InfoFrame packet (80h + InfoFrame type code as per EIA/CEA-861B) 81h AUD_IF_VERSION 7 to 0 AUD_IF_ VERSION[7:0] R/W 00h* audio InfoFrame version: gives the version number of the audio InfoFrame 82h AUD_IF_LENGTH 7 to 5 x R/W 000* reserved (shall be zero) 4 to 0 AUD_IF_LENGTH[4:0] R/W 0 0000* audio InfoFrame length: gives the number of data bytes for the audio InfoFrame; this length does not include the checksum 83h AUD_IF_CHECKSUM 7 to 0 AUD_IF_ CHECKSUM[7:0] R/W 00h* audio InfoFrame checksum: shall be calculated such that a byte-wide sum of all three bytes of the packet header and all valid bytes of the audio InfoFrame packet contents (determined by InfoFrame length) plus the checksum itself equals 0 |
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