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

87

Note: Pins shaded blue are left open; the other pins have been used for some function.

1

CS0/PS0

I/O

CapSense button/proximity sensor, controls 
GPO0

Proximity loop.

2

CS1/PS1

I/O

CapSense button/proximity sensor, controls 
GPO1

Brought out to dual header through a 560-ohm 
resistor.

3

CS2/GUARD

I/O

CapSense button/guard sensor, controls 
GPO2

Brought out to dual header through a 560-ohm 
resistor.

4

CS3

I/O

CapSense button controls GPO3

BTN1 (10-mm diameter).

5

CMOD

I/O

External modulator capacitor. 
Connect 2.2-nF capacitor

2.2 nF Cmod capacitor (COG type).

6

VCCD

Power Power. Connect 0.1-uF capacitor

Bypass capacitor of 0.1 uF.

7

VDD

Power Power

VADJ= 5 V, 3.3 V, or 1.8 V.

8

VSS

Power Ground

GND

9

CS15/SH/HI

I/O

CapSense button/shield electrode/host inter-
rupt/buzzer output

This pin will be connected to a 6-pin jumper to select 
between Hash GND for water proofing or host inter-
rupt.

10

CS14/GPO6

I/O

CapSense button/general-purpose output

LED 4 for button 4 (BTN4).

11

CS13/GPO5

I/O

CapSense button/general-purpose output

LED 3 for button 3 (BTN3).

12

CS12/GPO4

I/O

CapSense button/general-purpose output

LED 2 for button 2 (BTN2).

13

CS11/GPO3

I/O

CapSense button/general-purpose output

LED 1 for button 1 (BTN1).

14

CS10/GPO2

I/O

CapSense button/general-purpose output

Brought out to dual header through a 560-ohm 
resistor.

15

CS9/GPO1

I/O

CapSense button/general-purpose output

Brought out to dual header through a 560-ohm 
resistor.

16

CS8/GPO0

I/O

CapSense button/general-purpose output

Proximity LED.

17

CS7

I/O

CapSense button, controls GPO7

Cannot be used because GPO7 is multiplexed with 
the host interrupt so brought out to a header.

18

CS6

I/O

CapSense button, controls GPO6

BTN4 (11-mm diameter): A long trace option will be 
provided on this pin.

19

CS5

I/O

CapSense button, controls GPO5

BTN3 (11-mm diameter).

20

CS4

I/O

CapSense button, controls GPO4

BTN2 (10-mm diameter): Button 2 will have a slide 
switch, which varies the Cp to 10 pF or 15 pF, 
depending on the position of the switch.

21

I2C

SDA

I

2

C data

This pin will be connected to a 3-pin jumper, to 

choose between the onboard I

2

C-USB bridge or 

external host.

22

I2C

SCL

I

2

C clock

This pin will be connected to a 3-pin jumper, to 

choose between the onboard I

2

C-USB bridge or 

external host.

23

HI/BUZ/GPO7

O

Host interrupt/buzzer output/general-pur-
pose output

This pin will be connected to a 6-pin jumper to select 
the host interrupt or buzzer.

24

XRES

XRES External reset

Reset switch and an SIO pin on PSoC 5LP I

2

C-USB 

bridge.