8
R20UT4084ED0130 Rev. 1.3
2020-05-12
Note:
Although nominally 1.25V is used even as name in the schematic the
output of the voltage regulator IC19 is slightly increased to 1.28V (see
). With this sufficient high voltage is applied, even in
case of any possible voltage drops.
Figure 4 Voltage Distribution on the PiggyBack Board
•
The voltage supplied to the device pin W3
(marked "Ball_W3")
must be
configured to either
LVDVCC or E0VCC according to the device pinout.
Please check the device
HW user’s documentation for more details.
For more details, please refer to
. For typical
configuration of the jumpers, please refer to
.
JP0
+5V
JP1
+3.3V
JP4
JP2
JP3
E0VCC
JP5
E1VCC
E2VCC
VDDIOF (to
mainbo ard)
JP6
JP17
JP7
LVDVC C
SYSVCC
VCC
EMUVC C
JP8
JP9
JP10
JP11
A0VCC
JP12
A0VREFH
A2VCC
A2VREFH
ADSVCC
ADSVREFH
JP13
JP14
JP15
JP16
+5V
+3.3V
+1.25V
Voltage regulator IC
fo r 1.25V
Bo ard_VCC
#1
#2
#3
#2
#1
#1
#2
#3
#2
#1
JP22
#3
#2
#1
VDD
JP23
#1
#2
EMUVDD
JP24
JP30
#3
#2
#1
E0VCC
LVDVC C
JP18
Ball_
W3
#
1
#2
#
3
