TUSB3200CPAH datasheet(8/93 Pages) TI

8 / 93 page

1–2

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Micro-Controller Unit (MCU)

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Standard 8052 8-bit core

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4K Bytes of program memory ROM that contains a boot loader program that loads the application

firmware from external EEPROM

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8K Bytes of program memory RAM which is loaded by the boot loader program

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256 Bytes of internal data memory RAM

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Two GPIO ports

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MCU handles all USB control, interrupt and bulk endpoint transfers

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DMA Controller

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Four DMA channels to support streaming USB audio data to/from the CODEC Port Interface

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Each channel can support a single USB isochronous endpoint

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For I2S modes, either a single or multiple USB isochronous endpoints can be used to support multiple

DACs/ADCs

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CODEC Port Interface

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Configurable to support AC’97 1.X, AC’97 2.X or I2S serial interface formats

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I2S modes can support a combination of up to 4 DACs and/or 3 ADCs

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Can be configured as a general-purpose serial interface

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I2C Interface

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Master only interface

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Does not support a multimaster bus environment

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Programmable to 100 kbit/s or 400 kbit/s data transfer speeds

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Pulse Width Modulation (PWM) Output

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Programmable frequency range from 732.4 Hz to 93.75 kHz

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Programmable duty cycle

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General Characteristics

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Available in a 52-Pin TQFP Package

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On-chip phase-locked loop (PLL) with internal oscillator is used to generate internal clocks from a 6 MHz

crystal input

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3.3-V core and 5-V compatible input/output buffers used for CODEC port interface

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Reset output available which is asserted for both system and USB reset

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External MCU mode supports application firmware development

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