24
CY3240-I2USB I2C-USB Bridge Guide, Doc. # 001-66660 Rev.**
Hardware
Figure 4-2. Demo Target Board
4.2
Functional Description
The I2C-USB Bridge is connected to the PC in the same way as an HID device. It requires no
additional driver when connected to a PC installed with Windows. This I2C-USB Bridge works as a
master in the I
2
C bus and is controlled by the PC program via USB. In addition, a demonstration PC
program is included with the project to demonstrate bridge operation with connected I2C slave.
Figure 4-3. I2C-USB Bridge with Demo Target Board
PSoC
CY8C21123
ISSP
Programming
Header/Data
connector
Photo-diode
LED
Photo Diode
Output LEDs
Internal Power Jumper
PSoC CY8C24894 Chip
GPIO Pins
ISSP Programming Header
PSoC CY8C21123 Chip
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