The TUSB3410 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 I 2C. 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 I 2C 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.

Fully Compliant With USB 2.0 Full-Speed

Specifications: TID#40340262

Supports 12-Mbps USB Data Rate (Full Speed)

Supports USB Suspend, Resume, and Remote

Wake-Up Operations

Configurable to Bus-Powered and Self-Powered

Operation

Supports a Total of Three inputs and Three Output

(Interrupt, Bulk) Endpoints

Integrated 8052 Microcontroller With:

– 256 × 8 RAM for Internal Data

– 10K × 8 ROM (With USB and I

2C Bootloader)

– 16K × 8 RAM for Code Space Loadable From

Host or I

2C Port

– 2K × 8 Shared RAM Used for Data Buffers and

Endpoint Descriptor Blocks (DBS)

– Master I

2C Controller for EEPROM Device

Access

– MCU Operates at 24 MHz, Providing 2-MIPS

Operation

– 128-ms Watchdog Timer

Modems

Peripherals:

Printers, Handheld Devices, and so on

Medical Meters

DSP and μC Interface