Cypress Semiconductor CY3280-MBR3 ユーザーズマニュアル
CY3280-MBR3 Evaluation Kit User Guide, Doc. #: 001-89905 Rev. *B
33
Hardware
4.2
Theory of Operation
This section provides a block-level description of the CY3280-MBR3 EVK.
Figure 4-1. Block Diagram
This kit can be powered using the USB Mini-B, the Arduino-compatible header, or an external power
supply. You can configure the input voltage (1.8 V, 3.3 V, 5 V, or external supply) while connecting
the device to the EZ-Click 2.0 customizer tool. The voltage is controlled by using a low dropout
(LDO) regulator, which can provide regulated power of 1.8 V, 3.3 V, and 4.7 V to the CY8CMBR3116
device. The power to the MBR3 device is controlled by the Power setting in the EZ-Click customizer
tool; see
supply. You can configure the input voltage (1.8 V, 3.3 V, 5 V, or external supply) while connecting
the device to the EZ-Click 2.0 customizer tool. The voltage is controlled by using a low dropout
(LDO) regulator, which can provide regulated power of 1.8 V, 3.3 V, and 4.7 V to the CY8CMBR3116
device. The power to the MBR3 device is controlled by the Power setting in the EZ-Click customizer
tool; see
.
The CY3280-MBR3 EVK includes a status LED, a power LED, LEDs corresponding to all CapSense
buttons, and a proximity LED corresponding to the proximity loop on the kit. It contains an onboard
PSoC 5LP, which acts as a USB-I
buttons, and a proximity LED corresponding to the proximity loop on the kit. It contains an onboard
PSoC 5LP, which acts as a USB-I
2
C bridge to support I
2
C communication using a PC host.
This kit also includes a reset button, which connects to the reset pin (XRES) of the CY8CMBR3116
device. All the unused pins of the device are brought out onto the Arduino header J2 on the kit to
enable you to test different types of self-designed sensors and observe the output on the oscillo-
scope.
device. All the unused pins of the device are brought out onto the Arduino header J2 on the kit to
enable you to test different types of self-designed sensors and observe the output on the oscillo-
scope.
Note: The kit operation voltage is 4.7 V when the kit is configured for 5 V.
CY8CMBR3116
P5LP
I2C-USB
Bridge
USB
Mini B
Four Red LEDs
(one for each
CapSense Button)
Proximity Red
LED
Power LED
Red
Status LED
Green
ESD Protection
IEC 61000-4-2
Level 4
LDO
Buzzer
Arduino Headers (From Baseboard)
Slide
Switch(SW1)
Proximity Sensor
VBUS
VADJ
1.8V/
3.3V/
3.3V/
4.7V
VDD
I2C_SDA/
SCL
I2C_SCL
HI
/B
u
z
D+
/D
-
Variable Cp
(10pF, 15pF, 0pF)
Voltage
Control
Current
Sense
Buzzer
Shield
I2C
Host
Interrupt
I2C_SDA
Switch for
choosing a
longer parasitic
trace on BTN4
PolyZen
HI
/
Shiel
d
V
D
D
IO
2
=
V
D
D
IO
3=
VAD
3=
VAD
J
VDDI
O
0
=VDDI
O
1
=
V
BUS
VDD=VBUS
GND
Diode
V5
.0
.0
Jumper for
measuring Whole
Kit Current
Consumption
Reset SW
(SW2)
V4
.6
.6
V5.0_External
Slide
Switch(
SW3)
NO Load Res for
1.8V operation
Host
Interrupt
J11
J12
J1
5
5
J13 and J14
BTN2
BTN4
BTN1
BTN3