TUSB3210PM datasheet(9/50 Pages) TI1

9 / 50 page

TUSB3210

CLOCK

12 MHz

TUSB3210

www.ti.com

SLLS466G – FEBRUARY 2001 – REVISED DECEMBER 2015

7.3 Feature Description

7.3.1 USB 2.0 Full-Speed Compliant

The TUSB3210 device s fully compliant with USB 2.0 full-speed; it supports 12 Mbits/s of USB data rate (full

speed) as well as supporting USB suspend, resume, and remote wake-up operation.

7.3.2 Code Space Available

The TUSB3210 device has 8K × 8 RAM for firmware development. This firmware can be loaded though USB or

using I2C serial interface from an EEPROM. The MCU executes a read from an external EEPROM and tests to

determine if it contains the code (test for boot signature). If it contains the code, the MCU reads from EEPROM

and writes to the 8K RAM in XDATA space. If not, the MCU proceeds to boot from the USB.

7.3.3 Clock Generation

The TUSB3210 device accepts a 12-MHz crystal input to drive an internal oscillator of 48 MHz. If a clock is

provided to X1 instead of a crystal, X2 is left open. Otherwise, if a crystal is used, the connection must follow the

guidelines shown in Figure 1. Because X1 and X2 are coupled to other leads and supplies on the PCB, it is

important to keep the leads as short as possible and away from any switching leads. TI also recommends

minimizing the capacitance between X1 and X2, which can be accomplished by shielding C1 and C2 with the

clean ground lines.

Figure 1. Clock Generation Diagram

7.3.4 UART Interface

The TUSB3210 device can use P3.0 and P3.1 as UART port; this UART is normally used for debug purposes.

7.4 Device Functional Modes

7.4.1 Interface Configuration

The TUSB3210 device contains onboard ROM microcode, which enables the MCU to enumerate the device as a

USB peripheral. The ROM microcode can also load application code into internal RAM from either external

memory through the I2C bus or from the host through the USB.

7.4.2 GPIO Controller

The TUSB3210 device is a USB-based controller targeted as a general-purpose MCU with GPIO. The

TUSB3210 device has 8K × 8 RAM space for application development to control these GPIOs.

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TUSB3210PM Datasheet(PDF) 9 Page - Texas Instruments