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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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SM5902AF Datenblatt(PDF) 18 Page - Nippon Precision Circuits Inc |
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SM5902AF Datenblatt(HTML) 18 Page - Nippon Precision Circuits Inc |
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18 / 40 page  Flag Read name method FLAG6 READ Meaning - Indicates to the CD signal processor DSP (used for error correction, de-interleaving) that a 90H disturbance has exceeded the RAM jitter margin. bit 7 Set - Set according to the YFLAG input and the operating state of YFCKP and YFLGS. FLAG6 set conditions When YFLGS=0, YFCKP=0, YFCLK input falling edge, YFLAG=L When YFLGS=0, YFCKP=1, YFCLK input rising edge, YFLAG=L When YFLGS=1, YFCKP=0, YFLAG=L When YFLGS=1, YFCKP=1, YFLAG=H Reset - By 90H status read - By 80H command when MSON=ON - After external reset MSOVF READ Meaning - Indicates once only that a write to external DRAM has caused an overflow. (When reset 90H by the 90H status read command, this flag is reset even if the overflow condition continues.) bit 6 Set - When the write address (WA) exceeds the read address (RA) Reset - By 90H status read - When a read address clear (MSRACL) or write address clear (MSWACL) command is issued - After external reset BOVF READ Meaning - Indicates input data rate was too fast causing buffer overflow and loss of data 90H Set - When inputs a data during a buffer memory overflow bit 5 Reset - By 90H status read - When a read address clear (MSRACL) or write address clear (MSWACL) command is issued - After external reset DCOMP READ Meaning - Indicates that a compare-connect sequence is operating 90H Set - When a (3-pair or 2-pair) compare-connect start command is received (MSDCN2=1) bit 3 - When a direct connect command is received (MSDCN2=0, MSDCN1=1) Reset - When a (3-pair or 2-pair) comparison detects conforming data - When the connect has been performed after receiving a direct connect command - When a compare-connect stop command (MSDCN2=0, MSDCN1=0) is received - When a MSWREN=1 command is received (However, if a compare-connect command is received at the same time, the compare-connect command has priority.) - After external reset MSWIH READ Meaning - Indicates that the encode sequence has stopped due to internal factors 90H (not microcontroller commands) bit 2 Set - When FLAG6 (above) is set - When BOVF (above) is set - When MSOVF (above) is set Reset - When conforming data is detected after receiving a compare-connect start command - When the connect has been performed after receiving a direct connect command - When a read address clear (MSRACL) or write address clear (MSWACL) command is received - After external reset MSRIH READ Meaning - Indicates that the decode sequence has stopped due to internal factors 90H (not microcontroller commands) bit 1 Set - When the valid data residual becomes 0 Reset - By 90H status read - When a read address clear (MSRACL) or write address clear (MSWACL) command is issued - After external reset Status flag operation summary NIPPON PRECISION CIRCUITS-18 SM5902AF |
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