Datasheet
FRDM-KE02Z40M User’s Guide, Rev. 0, 03/2014
Freescale Semiconductor, Inc. 11
4.7 Capacitive touch slider
Two GPIO pins functioning as Touch Sense Input (TSI) signals, are connected to capacitive electrodes
configured as a touch slider as shown in the following figure.
Figure 7. Touch slider connection
4.8 Three-axis accelerometer
A Freescale MMA8451Q low-power, three-axis accelerometer is interfaced through an I
2
C bus and two
GPIO signals as shown in Table 4. By default, the I
2
C address is 0x1D (SA0 pulled high). Figure 8
shows the accelerometer connection.
Table 4. Accelerometer signal connections
MMA8451Q KE02Z
SCL PTA3
SDA PTA2
INT1 PTD4
INT2 PTD3