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CS8416-IZ Datasheet(PDF) 32 Page - Cirrus Logic |
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CS8416-IZ Datasheet(HTML) 32 Page - Cirrus Logic |
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32 / 48 page  CS8416 32 DS578PP2 8.13 Interrupt 1 Status (0Dh) For all bits in this register, a “1” means the associated interrupt condition has occurred at least once since the register was last read. A “0” means the associated interrupt condition has NOT occurred since the last reading of the register. Reading the register resets all bits to 0, unless the interrupt mode is set to level and the interrupt source is still true. Status bits that are masked off in the associated mask register will always be “0” in this register. PCCH – PC burst preamble change. Indicates that the PC byte has changed from its previous value. The user has TBD frames to read new value before it can potentially be overwritten again. If the IEC61937 bit in the Format Detect Sta- tus register goes high, it will cause a PCCH interrupt even if the PC byte hasn’t changed since the last time the IEC61937 bit went high. OSLIP - Serial audio output port data slip interrupt When the serial audio output port is in slave mode, and OLRCK is asynchronous to the port data source, This bit will go high every time a data sample is dropped or repeated. DETC - D to E C-buffer transfer interrupt. The source for this bit is true during the D to E buffer transfer in the C bit buffer management process. C_CHANGE -Indicates that the current 10 bytes of channel status is different from the previous 10 bytes. (5 bytes per channel) RERR - A receiver error has occurred. The Receiver Error register may be read to determine the nature of the error which caused the inter- rupt. QCH – A new block of Q-subcode is available for reading. The data must be read within 588 AES3 frames after the interrupt occurs to avoid corruption of the data by the next block. FCH – Format Change: Goes high when the PCM, IEC61937, DTS_LD, DTS_CD, or DGTL_SIL bits in the Format Detect Status register transition from 0 to 1. When these bits in the Format Detect Status register transition from 1 to 0, an interrupt will not be generated. 8.14 Q-Channel Subcode (0Eh - 17h) Each byte is LSB first with respect to the 80 Q-subcode bits Q[79:0]. Thus bit 7 of address 0Eh is Q[0] while bit 0 of address 0Eh is Q[7]. Similarly bit 0 of address 17h corresponds to Q[79]. 76 5432 10 0 PCCH OSLIP DETC CCH RERR QCH FCH 76 5432 10 CONTROL CONTROL CONTROL CONTROL ADDRESS ADDRESS ADDRESS ADDRESS TRACK TRACK TRACK TRACK TRACK TRACK TRACK TRACK INDEX INDEX INDEX INDEX INDEX INDEX INDEX INDEX MINUTE MINUTE MINUTE MINUTE MINUTE MINUTE MINUTE MINUTE SECOND SECOND SECOND SECOND SECOND SECOND SECOND SECOND FRAME FRAME FRAME FRAME FRAME FRAME FRAME FRAME ZERO ZERO ZERO ZERO ZERO ZERO ZERO ZERO ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS FRAME ABS FRAME ABS FRAME ABS FRAME ABS FRAME ABS FRAME ABS FRAME ABS FRAME |
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