User manual

CY3280-MBR3 Evaluation Kit User Guide, Doc. #: 001-89905 Rev. *B 87
A.2 Pin Assignment Table
Note: Pins shaded blue are left open; the other pins have been used for some function.
Pin No. Pin Name Type Description Usage
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.