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There is an additional power supply jumper controlling the I/O voltage for the peripherals on the MAC57D5MB in the
PER_HVA voltage domain. The default configuration matches the default configuration with the jumpers set to 3.3 V.
Table 6. Peripheral power supply jumper
BOARD
REFERENCE
POSITION
PCB
LEGEND
DESCRIPTION
MAC57D5MB
J29
1-2 (Default)
3.3 V switching regulator output is routed
to
PER_HVA (MCU)
2-3
5.0 V switching regulator output is routed
to
PER_HVA (MCU)
REMOVED
PER_HVA is not powered (disabled).
6.2 EVB voltage regulators
The following table shows the usage of each EVB voltage regulator. This provides a useful cross reference point should any
regulator be disabled.
Table 7. Voltage regulators
Regulator
Used on
12 V Unregulated
P12V
All voltage regulators (switching and Linear, jumper selectable on 3.3V
linear)
LIN Interface.
3.3 V Linear
P3V3_LR
VDDA_MCU
VDDEH_ADC_MCU
MLB Interface
ADC Potentiometer
5.0 V Switcher
P5V0_SR
PER_HVA
VDDA_MCU
VDDE_A_MCU
VDDE_B_MCU
Table continues on the next page...
MCU power supply jumpers
MAC57D5xx Customer Evaluation Boards, Rev. 0, 05/2016
Freescale Semiconductor, Inc.
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