P&E Microcomputer Systems XPC560S EVB User Manual - page 35
xPC560S EVB User Manual
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J17 – Debug Port Voltage Configuration
Sets the logic voltage level on the 14-pin JTAG port and 38-pin MICTOR port
(if available). These ports are used by external interface hardware to
communicate with the processor.
J18 – 3.3V MCU Power Enable
Allows 3.3V to be selected for the various power pins on the MPC560xS
processor.
J22 – VDDE_A Voltage Selection
Sets the voltage level on the MPC560xS “VDD_IO_B” and “VDD_IO_C”
Off
MPC560xS “VDD 1V2” pins are left disconnected
Jumper Setting
Effect
1+2 (default)
Debug port(s) are configured for 5V logic
2+3
Debug port(s) are configured for 3.3V logic
Jumper Setting
Effect
On (default)
3.3V is available to power the various power supply
pins on the MPC560xS processor
Off
3.3V cannot be used to power any of the various
power supply pins on the MPC560xS processor