Cypress Semiconductor CY8C24894 Manuel d'utilisateur télécharger pdf (Page 29)

CY3240-I2USB I2C-USB Bridge Guide, Doc. # 001-66660 Rev.** 29

Hardware

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. Port No Description

6 P0[4] LED1

7 P0[2] LED2

1 P0[5] Photo-diode

8 P1[0] Voltage supply

3 P1[1] Ground

2 P0[3] Interrupt

5 Vcc Serial clock

4 GND Serial data

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1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 45 46

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Cypress Semiconductor CY8C24894 Manuel d'utilisateur Page 29