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MAS3539F Datasheet(PDF) 33 Page - Micronas |
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MAS3539F Datasheet(HTML) 33 Page - Micronas |
33 / 92 page DATA SHEET MAS 35x9F Micronas June 30, 2004; 6251-505-1DS 33 Table 3–9: D0 control memory cells Memory Address (hex) Function Name D0:346 Main I/O Control (reset = 8025 hex) MPEG IOControlMain is used for selecting/deselecting the appropriate data input interface and for setting up the serial data output interface. In serial input mode the coded audio data (Layer 2, Layer 3, AAC) is expected at the serial input interface SDIB (default). In the 8-bit-parallel input mode the PIO pins PI[19:12] are used. bit[15] MP3 block input selection 0: MP3 block input mode OFF 1: MP3 block input mode ON bit[14] Invert serial output clock (SOC) 0 (reset) do not invert SOC 1invert SOC bit[13:12] Reserved, must be set to zero bit[11] Serial data output delay 0 (reset) no additional delay (reset) 1 additional delay of data related to word strobe bit[10] Reserved, must be set to zero bit[9:8] Input Select Main 00 (reset) serial input at interface B 01 parallel input at PIO pins PI[19...12] 10 reserved for future use 11 reserved for future use bit[7:6] Reserved, must be set to zero bit[5] SDO Word Strobe Invert 0 do not invert 1 (reset) invert outgoing word strobe signal bit[4] Bits per Sample at SDO 0 (reset) 32 bits/sample 1 16 bits/sample bit[3] Reserved, must be set to zero bit[2] Serial data input interface B clock invert (pin SIBC) 0 not inverted (data latched at rising clock edge) 1 (reset) incoming clock signal is inverted (data latched at falling clock edge) bit[1] 0 (reset) DEMAND MODE (PLL off, MAS 35x9F is clock master) 1 BROADCAST MODE (PLL on, clock of MAS 35x9F locks on data stream) bit[0] Validate no forced evaluation of control memory cells 0 (reset) 1 changes in control memory will become effective Bit[0] is reset after the DSP has recognized the changes. The controller should set this bit after the other D0 control memory cells have been initialized with the desired values. IOControlMain |
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