Configuration
—Daughter Cards
MPC5777C EVB User Guide, Rev. 0
29
Freescale
Signal
TP name
Shape
Description
J31 8
TP20
Pad
JTAG connection J31 8
MB PA8
TP21
Pad
Motherboard connection PA8
MB PA14
TP22
Pad
Motherboard connection PA14
MB PA6
TP23
Pad
Motherboard connection PA6
MB PA5
TP24
Pad
Motherboard connection PA5
MB PA7
TP25
Pad
Motherboard connection PA7
MB PA9
TP26
Pad
Motherboard connection PA9
SBC_5V
TP27
Pad
SBC_5V
GND
GT1 to GT11
Hook
Ground Reference
5.0V_SR
JP1
Pin
5.0V Switching Regulator
GND
JP2
Pin
Ground Reference
3.3V_SR
JP3
Pin
3.3V Switching Regulator
5.0V_SR
JP4
Pin
5.0V Switching Regulator
1.25V_SR
JP5
Pin
1.25V Switching Regulator
GND
JP6
Pin
Ground Reference
3.3V_SR
JP8
Pin
3.3V Switching Regulator
5.0V_SR
JP9
Pin
5.0V Switching Regulator
1.25V_SR
JP10
Pin
1.25V Switching Regulator
GND
JP11
Pin
Ground Reference
1.25V_SR
JP12
Pin
1.25V Switching Regulator
ENGCLK
JP13
Pin
ENGCLK
GND
JP14
Pin
Ground Reference
5.0V_SR
JP15
Pin
5.0V Switching Regulator
3.3V_SR
JP16
Pin
3.3V Switching Regulator
3.3V_SR
JP17
Pin
3.3V Switching Regulator
4.10
Configuring the Daughter Card for Standalone Use
It is possible to use the daughter cards without the motherboard to run code on the microcontroller.
Power to the daughter cards must be supplied through the terminal power connector JP7 – EXT PWR. It
is required to connect all three voltages (1.25 V, 3.3 V, 5V SR and 5 V LR) and ground as explained in
Section 4.1.2
“
Daughter Card Standalone Power Input -External”(
or)
The Daughter Card can be used in standalone by enabling PowerSBC with its respective jumpers as
described in the
Section 4.1.3 “Daughter Card Standalone Power Input –Power SBC”.
Additional to enabling PowerSBC power supply it is required to connect the 5V_SR power rail to the
Analog power rail of the daughter card that powers the VDDA_SD & VDDA_EQ (ADC supply) and
VRH_SD, VRH_SEQ (ADC reference voltage) pins. It is recommended to do that by installing a
jumper connecting J5 (2-3) (5.0V_SR) to Analog Supply Rail.