Demo Target Board - Cypress I2C-USB Manual

Figure 4-8. I2C Slave Interface Schematic
4.2.6

Demo Target Board

The target board is used to light up the two LEDs on receiving data from host and transfer the data,
acquired from photo diode to host.
PSoC device (CY8C21123) is used to control the two LEDs based on input from the host using
Bridge Control Panel. The PSoC device updates the I2C register with the sensor information, which
can be read by any I2C master.
Table 4-3. CY8C21123 Pin Connectivity
Pin No.
6
7
1
8
3
2
5
4
CY3240-I2USB I2C-USB Bridge Guide, Doc. # 001-66660 Rev.**
Port No Description
P0[4] LED1
P0[2] LED2
P0[5] Photo-diode
P1[0] Voltage supply
P1[1] Ground
P0[3] Interrupt
Vcc Serial clock
GND Serial data
Hardware
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