Cypress CY3270 0.100 8x2 Male Pin Header, NOTE This Expansion Board Does Not Have An Onboard

Technical Reference

The dedicated sensors and output devices on the FTMF Expansion Card are there to help you quickly evaluate and experiment with a variety of PSoC applications, without having to build any hardware. Your PSoC Express or PSoC Designer project completely determines the remaining FTMF Expansion Card functions. Included in the kit installation are demonstration projects that use the following input sensors:

■CapSense slider

■Temperature sensor

■Ambient Light sensor

■CapSense proximity sensor

The FTMF Expansion Card uses a standard FirstTouch expansion header for connection to the FTPC bridge or other target hardware.

Figure 3-3. FTMF Expansion Card Expansion Header Signals

VEXP

ISSP_XRES

ISSP_CLK

ISSP_DAT

0.100" 8x2 Male

Pin Header

	J1
1
	VEXP_IN	NC
3
	GND	VEXP_OUT
5
	ISSP_XRES	SDA-MOSI
7
	ISSP_CLK	SCL-SCLK
9
	ISSP_DAT	GPIO5
11
	EXP_TYPE	GPIO4
13
	MISO	GPIO3
15
	SPI_nss	GPIO2

8X2 PIN HDR RA

VEXP

2

4

6I2C_SDA

8I2C_SCL

10PO5

12PO4

14PO3

16PO2

NOTE: This Expansion Board Does Not Have An Onboard

Voltage Regulator - DO NOT Power With > 5Vdc

Notice that the 8x2 pin expansion header also includes four General Purpose IO connections labeled P02-P05. These are hard wired to four unused Port 0 IO pins on the CY8C21434 host and allow you to easily connect the FTMF Expansion Card to your specific hardware or sensors. These IO pins were specifically chosen because they have the ability to operate as analog outputs, analog inputs, digital inputs, digital outputs, or any combination of the four types; this pin selection makes them true analog or digital GPIO.

Your PSoC Express project designates the specific function for these A/D GPIO pins.

20 CY3270 PSoC® FirstTouch™ Guide, Document # 001-15945 Rev. **