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CS5463 Datasheet(PDF) 22 Page - Cirrus Logic |
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CS5463 Datasheet(HTML) 22 Page - Cirrus Logic |
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22 / 46 page  CS5463 22 DS678F3 If the serial port interface becomes unsynchronized with respect to the SCLK input, any attempt to clock valid commands into the serial interface may result in unex- pected operation. Therefor, the serial port interface must then be re-initialized by one of the following ac- tions: -Drive the CS pin high, then low. - Hardware Reset (drive RESET pin low for at least 10 µs). - Issue the Serial Port Initialization Sequence, which is 3 (or more) SYNC1 command bytes (0xFF) followed by one SYNC0 command byte (0xFE). If a re-synchronization is necessary, it is best to re-ini- tialize the part either by hardware or software reset (command 0x80), as the state of the part may be un- known. 5.15 Register Paging Read/write commands access one of the 32 registers within a specified page. By default, Page = 0. To access registers in another page, the Page Register (address 0x1F) must be written with the desired page number. Example: Reading register 6 in page 3. 1. Write 3 to page register with command and data: 0x7E 0x00 0x00 0x03 2. Read register 6 with command: 0x0C 0xFF 0xFF 0xFF 0xFFF 0x000 0x3FF Hardware Registers* 32 Pages Software Register* 32 Pages ROM 2048 Words 0x400 0x7FF 0x800 Pages 0x40 - 0x7F Pages 0x20 - 0x3F Pages 0 - 0x1F * Accessed using register read/write commands. Figure 11. CS5463 Memory Map |
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