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TUSB3200CPAH 数据表(PDF) 15 Page - Texas Instruments |
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TUSB3200CPAH 数据表(HTML) 15 Page - Texas Instruments |
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15 / 93 page ![]() 1–9 1.8 Device Operation Modes The EXTEN and TEST pins define the mode that the TUSB3200 will be in after reset. MODE EXTEN TEST Normal mode – internal MCU 0 0 External MCU mode 1 0 Factory test 0 1 Factory test 1 1 1.9 Terminal Assignments for CODEC Port Interface Modes The CODEC port interface has eight modes of operation that support AC97, I2S, and AIC CODECs. There is also a general-purpose mode that is not specific to a serial interface. The mode is programmed by writing to the mode select field of the CODEC port interface configuration register 1 (CPTCNF1). The CODEC port interface terminals CSYNC, CSCLK, CDATO, CDATI, CRESET, and CSCHNE take on functionality appropriate to the mode programmed as shown in the following tables. TERMINAL GP AIC AC ’97 v1.X AC ’97 v2.X NO. NAME Mode 0 Mode 1 Mode 2 Mode 3 35 CSYNC CSYNC I/O FS O SYNC O SYNC O 34 CSCLK CSCLK I/O SCLK O BIT_CLK I BIT_CLK I 36 CDATO CDATO O DOUT O SD_OUT O SD_OUT O 38 CDATI CDATI I DIN I SD_IN I SD_IN1 I 39 CRESET CRESET O RESET O RESET O RESET O 40 CSCHNE NC O FC O NC O SD_IN2 I TERMINAL I2S I2S I2S I2S NO. NAME Mode 4 Mode 5 Mode 6 Mode 7 35 CSYNC LRCK O LRCK O LRCK O LRCK O 34 CSCLK SCLK O SCLK O SCLK O SCLK O 36 CDATO SDOUT1 O SDOUT1 O SDOUT1 O SDOUT1 O 38 CDATI SDOUT2 O SDOUT2 O SDIN1 I SDOUT2 O 39 CRESET SDOUT3 O SDIN1 I SDIN2 I SDOUT3 O 40 CSCHNE SDIN1 I SDIN2 I SDIN3 I SDOUT4 O NOTES: 1. Signal names and I/O direction are with respect to the TUSB3200 device. The signal names used for the TUSB3200 terminals for the various CODEC port interface modes reflect the nomenclature used by the CODEC devices. 2. NC indicates no connection for the terminal in a particular mode. The TUSB3200 device drives the signal as an output for these cases. 3. The CSYNC and CSCLK signals can be programmed as either an input or an output in the general-purpose mode. |
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