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AS3588AP Datasheet(PDF) 6 Page - ams AG |
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AS3588AP Datasheet(HTML) 6 Page - ams AG |
6 / 15 page Data Sheet AS3588A Rev. 3.1 Page 6 of 15 July 1999 Reading the registers in the order OR1 , OR2 must be continued until completion or until the time frame runs out. With a new time frame a new extraction process begins, resuming the copy operation from the background register. During extraction the active channels are scanned from the highest to the lowest number (from 7 to 0). While extraction is being carried out the time interval requirements between active ris- ing edges of RD are minimum 5 to 13 tCK for se- quence OR2- OR1 and minimum 3 times tCK for se- quence OR1 - OR2. Channel 0 extraction is disabled by a reset pulse or by writing a zero mask into the de- vice. This clears the mask register and the background register Instruction Tables Instruction 1: Channel Connection / Disonnection Control Signals Data Bus Comments SEL C/D CS WR RD D7 D6 D5 D4 D3 D2 D1 D0 X 0 0 0 1 X X X X X BI2 BI1 BI0 Byte 1: PCM input line X 0 0 0 1 X X X CI4 CI3 CI2 CI1 CI0 Byte2: PCM input channel X 0 0 0 1 X X X X X BO2 BO1 BO0 Byte 3: PCM output line X 0 0 0 1 X X X CO4 CO3 CO2 CO1 CO0 Byte4: PCM output channel 1/0 1 0 0 1 X X X X 0 0 0 1 Instruction Byte 1 0 0 1 0 C7 C6 C5 C4 C3 C2 C1 C0 OR1 (BI2) (BI1) (BI0) (CI4) (CI3) (CI2) (CI1) (CI0) Contents of CM (1) (1) (1) (1) (1) (1) (1) (1) Note 1 1 1 0 1 0 A7 A6 A5 C8 OP3 OP2 OP1 OP0 OR2 (BO2) (BO1) (BO0) (0) (0) (0) (0) (1) (BO2) (BO1) (BO0) (1) (0) (0) (0) (1) Note 1 Note1: The Connection memory contains all ones if not connected Instruction 2: Output Channel Disconnection Control Signals Data Bus Comments SEL C/D CS WR RD D7 D6 D5 D4 D3 D2 D1 D0 X 0 0 0 1 X X X X X BO2 BO1 BO0 Byte 1: PCM output line X 0 0 0 1 X X X CO4 CO3 CO2 CO1 CO0 Byte 2: PCM output channel 1 1 0 0 1 X X X X 0 0 1 0 Instruction Byte 1 0 0 1 0 C7 C6 C5 C4 C3 C2 C1 C0 OR1 (1) (1) (1) (1) (1) (1) (1) (1) Note 1 1 1 0 1 0 A7 A6 A5 C8 OP3 OP2 OP1 OP0 OR2 (BO2) (BO1) (BO0) (1) (0) (0) (1) (0) Note1: The Connection memory contains all ones if not connected |
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