The TUSB3410VF device provides bridging between a USB port and an enhanced UART serialport. The device contains an 8052 microcontroller unit (MCU) with 16KB of RAM that can be loadedfrom the host or from the external onboard memory through an I2C. Thedevice also contains 10KB of ROM that allows the MCU to configure the USB port at boot time. TheROM code also contains an I2C bootloader. All device functions (such asthe USB command decoding, UART setup, and error reporting) are managed by the internal MCU firmwarein unison with the PC host.
Feature
- 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 Input and Three Output (Interrupt, Bulk) Endpoints
- Integrated 8052 Microcontroller With:
- 256 × 8 RAM for Internal Data
- 10K × 8 ROM (With USB and I2C Bootloader)
- 16K × 8 RAM for Code Space Loadable From Host orI2C Port
- 2K × 8 Shared RAM Used for Data Buffersand Endpoint Descriptor Blocks (EDBs)
- Master I2CController for EEPROM Device Access
- MCU Operates at 24 MHz, Providing 2-MIPSOperation
- 128-ms Watchdog Timer
- Enhanced UART :
- Software and Hardware Flow Control
- Automatic RS-485 Bus Transceiver Control, With and Without Echo
- Selectable IrDA Mode for Up to 115.2-kbps Transfer
- Software-Selectable Baud Rate From 50 BPS to 921.6kbps
- Programmable Serial-Interface Characteristics
- 5-, 6-, 7-, or 8-Bit Characters
- Even, Odd, or No Parity-bit Generation and Detection
- 1-, 1.5-, or 2-Stop Bit Generation
- Line Break Generation and Detection
- Internal Test and Loopback Capabilities
- Modem ControlFunctions (CTS, RTS, DSR, RI and DCD)
- Internal Diagnostic Capability
- Loopback Control for Communications Link-Fault Isolation
- Break, Parity, Overrun, Framing-Error Simulation
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