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WM8213SCDS/V 数据表(PDF) 32 Page - Wolfson Microelectronics plc |
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WM8213SCDS/V 数据表(HTML) 32 Page - Wolfson Microelectronics plc |
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32 / 38 page ![]() WM8213 Production Data w PD Rev 4.1 July 2008 32 ADDRESS <A5:A0> REGISTER BIT NO BIT NAME(S) DEFAULT DESCRIPTION 1:0 OPFORM[1:0] 0 Determines the output data format. x0 = 8-bit multiplexed (8+8 bits) 01 = 8-bit parallel (8-MSBs only) 11 = 4-bit multiplexed mode (4+4+4+4 bits). This mode is only valid when LEGACY=1. 2 INVOP 0 Digitally inverts the polarity of output data. 0 = negative going video gives negative going output, 1 = negative-going video gives positive going output data. Output Disable. This works with the OEB pin to control the output pins. 0=Digital outputs enabled, 1=Digital outputs high impedance OEB (pin) OPD OP pins 0 0 Enabled 0 1 High Impedance 1 0 High Impedance 3 OPD 0 1 1 High impedance 4 LOWREFS 0 Reduces the ADC reference range (2*[VRT-VRB]), thus changing the max/min input voltages. 0= ADC reference range = 2.0V 1= ADC reference range = 1.2V 5 RLCDACRNG 1 Sets the output range of the RLCDAC. 0 = RLCDAC ranges from 0 to AVDD (approximately), 1 = RLCDAC ranges from 0 to VRT (approximately). Controls the latency from sample to data appearing on output pins Latency DEL LEGACY=0 All timing modes LEGACY=1 timing modes 1-2,4-6 LEGACY =1 timing mode 3 00 7 MCLK periods 16.5 MCLK periods 23.5 MCLK periods 01 8 MCLK periods 18.5 MCLK periods 26.5 MCLK periods 10 9 MCLK periods 20.5 MCLK periods 29.5 MCLK periods 000010 (02h) Setup Register 2 7:6 DEL[1:0] 00 11 10 MCLK periods 22.5 MCLK periods 31.5 MCLK periods |
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