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20 CY3270 PSoC® FirstTouch™ Guide, Document # 001-15945 Rev. **
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
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.
NOTE: This Expansion Board Does Not Have An Onboard
Voltage Regulator - DO NOT Power With > 5Vdc
0.100" 8x2 Male
Pin Header
ISSP_XRES
ISSP_CLK
ISSP_DAT
I2C_SDA
I2C_SCL
PO5
PO4
PO3
PO2
VEXP VEXP
J1
8X2 PIN HDR RA
1
3
5
7
9
11
4
13
15
6
8
2
16
14
12
10
VEXP_IN
GND
ISSP_XRES
ISSP_CLK
ISSP_DAT
EXP_TYPE
VEXP_OUT
MISO
SPI_nss
SDA-MOSI
SCL-SCLK
NC
GPIO2
GPIO3
GPIO4
GPIO5