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Hardware Overview
1-3
Required Hardware and Software
1.2 Hardware Overview
The TUSB3410 GPIO EVM hardware platform is 4,3 cm × 6,8 cm in width ×
length. Throughout this document, text inside of parentheses (ex.) is reference
designators found on the TUSB3210 EVM. See Figure 1–2 for a reference
picture of the EVM. First, all jumpers are installed with the factory settings. See
Table 2–3 for a description of jumper settings and make any required changes
before using the EVM. The TUSB3410 GPIO EVM is designed to allow great
flexibility in evaluation while being very easy and practical to use. The EVM is
designed to run using a 12-MHz crystal and an I
2
C EEPROM. The EVM is set
up for bus-powered operation using a 5-V to 3.3-V voltage regulator. The
firmware installed at the factory in the EEPROM is special USB keyboard
firmware, which makes it very easy for evaluation on any USB-enabled OS
without the need for a device driver. The firmware installed is reference
firmware and the source code is available for developers. The RS-232 port is
available for monitoring 8052 MCU activity for debugging purposes. The
RS-232 port requires a 1-to-1 cable, not a null-modem cable. Several test
points have been added to the EVM for probing. An LED (D2) displays the
suspend status of the TUSB3410 device. A USB cable should be plugged into
a USB port on a PC or USB hub and connected to the TUSB3410 EVM type-B
USB connector (U3).
Figure 1–2. TUSB3410 GPIO Evaluation Board