The maximum cable length supported by the CY7C68321-100AXC is 3 meters (10 feet) for full-speed devices and 1 meter (3.3 feet) for low-speed devices, assuming a good quality cable and proper termination.
To implement a custom USB device class, you need to develop a custom firmware that communicates with the CY7C68321-100AXC using the EZ-USB FX2's GPIF (General Programmable Interface) and I2C interfaces. You can use Cypress's EZ-USB FX2 Development Kit and the Cypress's USB Suite software to develop and test your custom firmware.
No, the CY7C68321-100AXC is not designed to be used as a USB hub. It is a USB peripheral controller that can be used to implement a single USB device function, such as a USB-to-parallel bridge or a USB-to-I2S bridge.
The power consumption of the CY7C68321-100AXC depends on the operating mode and the clock frequency. In the suspend mode, the power consumption is typically around 50 μA. In the active mode, the power consumption is typically around 200-300 mA, depending on the clock frequency and the device configuration.
You can use Cypress's EZ-USB FX2 Development Kit and the Cypress's USB Suite software to debug and test the CY7C68321-100AXC. The kit provides a range of debugging tools, including a USB protocol analyzer, a signal generator, and a logic analyzer.
CY7C68321-100AXC datasheet
by Cypress Semiconductor
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