PSoC® 4100S Pioneer Kit Guide, Doc. # 002-14067 Rev. *C
37
Note:
The KitProg2 does not support USB-SPI bridge functionality. The SPI pins of the PSoC 4100S
are connected to the PSoC 5LP for enabling SPI communication between PSoC 5LP and PSoC
4100S for custom PSoC 5LP applications.
Figure A-1. Schematics of Serial Interface Connections and I2C Pull-Up via FETs
A.2.4
Power Supply System
The power supply system on this board is versatile, allowing the input supply to come from the fol-
lowing sources:
■
5-V power from onboard USB connector
■
6-V to 12-V power from Arduino shield or from external power supply through VIN header (J7)
■
3-V from battery
The PSoC 4100S Pioneer Kit is designed to support 1.9 V, 3.3 V, or 5 V operation for PSoC 4100S
and EZ-BLE PRoC Module, when powered from USB port or external power supply. The voltage
selection is made through switch SW6. The voltage regulator (MB39C011A) from Cypress has two
channels and generates a constant 3.3 V on one channel and 1.9 V on the other. The onboard
rechargeable battery provides 3 V to the kit. The selection between battery and USB is made
through the VDD source selection switch, SW4. When the kit is powered from the USB connector, it
provides 3.3 V and 5 V to the Arduino-compatible power header.
Figure A-2
shows the schematics of
the voltage regulator and power selection circuit.
I2C Interface
P5LP12_0
P5LP12_1
P5LP15_0
VDD
I2C_SDA
I2C_SCL
R113
2.2K
U16
NTZD3152P
6
2
1
3
4
5
R116
ZERO
R112
2.2K
R114
ZERO
NO LOAD
NO LOAD
NO LOAD
NO LOAD
SPI Interface
UART Interface
I2C Interface
SPI_MOSI
SPI_SSEL
SPI_MISO
SPI_SCLK
UART RX
UART TX
P3_0
P3_1
P0_0
P1_0
P1_1
P1_2
J4_P0_4
J4_P0_5
I2C_SCL
I2C_SDA
R47
ZERO
R52
ZERO
R48
ZERO
R34
ZERO
R36
ZERO
R40
ZERO
R42
ZERO
R45
ZERO
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from