User manual

CY3280-MBR3 Evaluation Kit User Guide, Doc. #: 001-89905 Rev. *B 47
Hardware
Figure 4-17. Parasitic Capacitance Configuration
4.3.8 Arduino-Compatible Headers
The I/O headers J1–J4 comply with the Arduino UNO (R3) kit to support Arduino base boards. The
Arduino-defined signals include digital/analog signals from the CY8CMBR3116; system power sig-
nals are brought to the outer rows of headers J1–J4.
Pin maps of the Arduino-compatible headers J1–J4 are shown in the following tables. The pins con-
nected between the Arduino board and the CY3280-MBR3 EVK appear in red. The pins shown in
blue are on the second row of the J2 connector; these are the unused pins of the CY8CMBR3116
device.
This kit also provides additional I
2
C lines on pins J2.9 (SDA) and J2.11 (SCL). These pins are used
by older Arduino boards, such as the Arduino UNO R2 and Arduino Mega boards. These lines are
not connected (NC) by default and can be used by loading a 0- resistor on R71 and R72 and
removing both jumpers from headers J13 and J14.