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WM8804 датащи(PDF) 12 Page - Wolfson Microelectronics plc |
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WM8804 датащи(HTML) 12 Page - Wolfson Microelectronics plc |
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12 / 66 page ![]() WM8804 Production Data w PD Rev 4.1 September 2007 12 . . . . . . . . . Frame 192 Frame 1 Subframe 1 Subframe 2 Sync preamble Aux V U C P Audio Sample Word 3 4 7 8 27 28 0 31 32 bits Figure 6 S/PDIF Format POWER UP CONFIGURATION The operating mode of the WM8804 is dependent upon the state of SDIN, SCLK, SDOUT, CSB and GPO0 when the device is powered up or a hardware reset occurs. Table 6 summarises the configuration options. HW RESET = 0 HW RESET = 1 SWMODE HWMODE SWMODE HWMODE SDIN HWMODE / SWMODE Select SDIN N/A SCLK N/A AIF_MS SCLK GPO (TRANS_ERR) 2-wire 3-wire SDOUT N/A AIF_CONF[0] GPO SDOUT GPO (NON_AUDIO) 2-wire 3-wire 2-wire 3-wire CSB Device Address N/A TXSRC GPO CSB GPO (UNLOCK) GPO0 2-wire/3-wire Mode Select AIF_CONF[1] GPO GPO (GEN_FLAG) Note: AIF_CONF[1:0] configures the audio interface when the device operates in hardware mode. Refer to Table 16 for description of modes. Table 6 Device Configuration at Power up or Hardware Reset |
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