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TUSB3200CPAH 数据表(PDF) 12 Page - Texas Instruments |
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TUSB3200CPAH 数据表(HTML) 12 Page - Texas Instruments |
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12 / 93 page ![]() 1–6 1.6 Terminal Functions – Normal Mode (Continued) TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION MCLKO2 45 O Master clock output 2:An output that can be used as the master clock for the CODEC port interface and the CODEC. This clock signal can also be used as a miscellaneous clock. This signal uses a 3.3-V TTL/LVCMOS output buffer. MRESET 10 I Master reset: An active low asynchronous reset for the device that resets all logic to the default state. This signal uses a 3.3-V TTL/LVCMOS input buffer. Not Used 22 I This pin is not used in the normal mode. This signal should be tied to digital ground for normal operation. P1.0 24 I/O General-purpose I/O port 1 bit 0: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.1 25 I/O General-purpose I/O port 1 bit 1: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.2 26 I/O General-purpose I/O port 1 bit 2: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.3 28 I/O General-purpose I/O port 1 bit 3: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.4 29 I/O General-purpose I/O port 1 bit 4: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.5 30 I/O General-purpose I/O port 1 bit 5: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.6 31 I/O General-purpose I/O port 1 bit 6: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P1.7 32 I/O General-purpose I/O port 1 bit 7: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P3.0 14 I/O General-purpose I/O port 3 bit 0: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P3.1 15 I/O General-purpose I/O port 3 bit 1: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P3.3 18 I/O General-purpose I/O port 3 bit 3: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P3.4 19 I/O General-purpose I/O port 3 bit 4: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. P3.5 20 I/O General-purpose I/O port 3 bit 5: A bidirectional I/O port. This signal uses a 5-V compatible TTL/LVCMOS input/output buffer with an internal 100 µA active pullup. PLLFILI 52 I PLL loop filter input: Input to on-chip PLL from external filter components. PLLFILO 1 O PLL loop filter output: Output from on-chip PLL to external filter components. PLLO 4 O PLL output: The 48-MHz output of the PLL used for diagnostic purposes only. This signal uses a 3.3-V TTL/LVCMOS output buffer. PLLOEN 23 I PLL output enable: An input used to enable the PLLO output signal. This signal uses a 5-V compatible input buffer. PWMO 3 O PWM output: Output of the pulse width modulation circuit. This signal uses a 3.3-V to 5-V CMOS level shifting output buffer. PUR 6 O USB data signal plus pullup resistor connect: PUR is used to connect the pullup resistor on the DP signal to 3.3-V or a 3-state. When the DP signal is connected to 3.3-V the host PC should detect the connection of the TUSB3200 device to the universal serial bus. This signal uses a 3.3-V TTL/LVCMOS output buffer. RSTO 13 O Reset output: Output that is active while the master reset input or the USB reset is active. This signal uses a 3.3-V TTL/LVCMOS output buffer. SCL 42 O I2C interface serial clock: SCL is the clock signal for the I2C serial interface. This signal uses a 3.3-V to 5-V TTL level shifting open drain output buffer. |
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