TUSB3410

UART/I2C/IrDA 串行端口转 USB 桥接器

The device provides bridging between a USB port and an enhanced UART serial port. The device contains an 8052 microcontroller unit MCU with 16KB of RAM that can be loaded from the host or from the external onboard memory through an I2C. The device also contains 10KB of ROM that allows the MCU to configure the USB port at boot time. The ROM code also contains an I2C bootloader. All device functions such as the USB command decoding, UART setup, and error reporting are managed by the internal MCU firmware in unison with the PC host.

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Fully Compliant With USB 2.0 Full-Speed

Specifications: D#40340262

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Supports 12-Mbps USB Data Rate Full Speed

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Supports USB Suspend, Resume, and Remote

Wake-Up Operations

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Configurable to Bus-Powered and Self-Powered

Operation

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Supports a Total of Three Input and Three Output

Interrupt, Bulk Endpoints

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Integrated 8052 Microcontroller With:

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256 × 8 RAM for Internal Data

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10K × 8 ROM With USB and I2C Bootloader

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16K × 8 RAM for Code Space Loadable From

Host or I2C Port

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2K × 8 Shared RAM Used for Data

Buffers and Endpoint Descriptor Blocks EDBs

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Master I2C Controller for EEPROM Device

Access

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MCU Operates at 24 MHz, Providing 2-MIPS

Operation

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128-ms Watchdog Timer

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Enhanced UART Features:

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Software and Hardware Flow Control

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Automatic RS-485 Bus Transceiver Control,

With and Without Echo

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Selectable IrDA Mode for Up to 115.2-kbps

Transfer

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Software-Selectable Baud Rate From 50 BPS to

921.6 kbps

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Programmable Serial-Interface Characteristics ul>

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5-, 6-, 7-, or 8-Bit Characters

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Even, Odd, or No Parity-bit Generation and

Detection

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1-, 1.5-, or 2-Stop Bit Generation

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Line Break Generation and Detection

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Internal Test and Loopback Capabilities

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Modem Control Functions CTS, RTS, DSR, RI

and DCD

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Internal Diagnostic Capability

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Loopback Control for Communications

Link-Fault Isolation

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Break, Parity, Overrun, Framing-Error

Simulation