XPC564A Datasheet, PDF (42/67 Pages) Freescale Semiconductor, Inc – Evaluation system supporting Freescale MPC564xA microprocessors

J17 – Debug Ports Power Configuration
Controls whether the power pins on the debug ports (VDDE7 on the 14-pin
JTAG port and VREF on the 28-pin Mictor port) are connected to 3.3V or 5V.
Jumper Setting
1+2
2+3 (default)
Effect
The power pins on the debug ports are connected to 5V
The power pins on the debug ports are connected to
3.3V
J18 – Processor I/O Voltage Configuration
Sets the voltage level applied to the I/O Supply Input pins of the MPC564xA
processor.
Jumper Setting Effect
1+2 (default)
The “I/O Supply Input” pins of the MPC564xA
processor are powered by 5V
The “I/O Supply Input” pins of the MPC564xA
2+3
processor are powered by 3.3V
J19 – 3.3V Voltage Source
Controls whether the voltage source for 3.3V on the MPC564xA processor is
provided by the motherboard or by the 5V external source on the Mini-Module
via a voltage regulator.
Jumper Setting Effect
38
xPC564A EVB User Manual