
Getting to Know the Hardware
KT34FS6407-34FS6408UG User’s Guide Rev. 1.0 8/2015
12
Freescale Semiconductor, Inc.
4.8
Connector and Jumper Definitions
Table 5. Main Power Supply Connector
JP1 Pin Number
Name of Power Rail
Description
1
V
CORE
Core voltage for the MCU
2
PGND
Power ground
3
V
CCA
ADC power supply
4
GND
Ground
5
V
AUX
Auxiliary power supply
6
GND
Ground
7
CAN_5V
CAN power supply
8
GND
Ground
9
V
PRE
Pre-regulator voltage
10
PGND
Power ground
Table 6. Jumpers J1 through J31 (Including Connectors)
Schematic
Label
Pin Number
Pin Name
Jumper/Pin Function
J1
Compensation network for FB_core – part 1
1-2
V
CORE
= 1.23 V
3-4
V
CORE
= 3.3 V
J2
C_OUT – selection of output capacitance for V
CORE
If connected, output capacitance is 40 µF, 20 µF otherwise
No jumper
C
OUT
= 20 µF
1-2
C
OUT
= 40 µF
J3
Power supply DC 12 V
J4
Buck-boost/standard buck mode configuration
1-2
Buck-boost configuration
3-4
No jumper
Buck only configuration
J5
V
CORE
selection
1-2
V
CORE
= 1.23 V
3-4
V
CORE
= 3.3 V