TWR-KW2xDxxx
Tower KW2xDxxx Hardware Reference Manual, Rev. 0.2
Freescale Semiconductor
3-7
Figure 3-5. 32.768 kHz Optional Oscillator Circuit
3.2.3
Power Management
The TWR-KW2xDxxx power management circuit is shown in
Figure 3-6
.
Figure 3-6. TWR-KW2xDxxx Power Management Circuit
The TWR-KW2xDxxx has the flexibility to be powered in several configurations:
•
Board can be supplied through the mini USB type B connector (J15) which provides P5V_USB to
J1 1-2.
•
Board can be supplied through the micro USB AB (J6) (TWR-KW24D512 only) providing
P5V_KW24_USB to J27 1-2 and VOUT33 to J3 2-3.
•
Board can be supplied through the TWR System Elevator headers which provides either
3.3V_ELEV or 5V_ELEV to header J1 3-4 or J1 5-6 respectively.
•
Board can be supplied from an external DC supply in the following ways:
— Connect an USB battery adaptor capable of suppling 1.8 to 5.5 VDC to the micro USB AB (J6)
(TWR-KW24D512 only)
