CY3218-CAPEXP1 Cypress Semiconductor Corp, CY3218-CAPEXP1 Datasheet - Page 28

• Manufacturer Part Number: CY3218-CAPEXP1
• Description: KIT CAPSENSE EXPRESS CY8C20110
• Manufacturer: Cypress Semiconductor Corp
• Series: CapSense Express™r

Specifications of CY3218-CAPEXP1

• Sensor Type: Touch, Capacitive
• Interface: I²C, USB
• Voltage - Supply: 0.9 V ~ 1.5 V
• Embedded: Yes, Other
• Utilized Ic / Part: CY8C20110
• Processor To Be Evaluated: CY8C201x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-2043

Appendix – Examples of Frequently Used I
Document Number: 001-54606 Rev. *E
Note
24. The ‘W’ indicates the write transfer and the next byte of data represents the 7-bit I2C address. The I2C address is assumed to be ‘0’ in the above examples.
No.
Sl
1
2
3
4
5
6
7
8
9
Similarly ‘R’ indicates the read transfer followed by 7-bit address and data byte read operations.
Enter into setup mode
Enter into normal mode
Load factory defaults to RAM
registers
Do a software reset
Save current configuration to flash
Load factory defaults to RAM
registers and save as user
configuration
Enable GP00 as CapSense button
Read CapSense button(GP00)
scan results
Read CapSense button status
register
Requirement
I
R 00 RD. RD. RD.
2
C commands
W 00 A0 08
W 00 A0 07
W 00 A0 08
W 00 A0 01
W 00 A0 08
W 00 A0 02
W 00 A0 06
W 00 A0 08
W 00 A0 02
W 00 A0 01
W 00 A0 06
W 00 06 01
W 00 A0 01
W 00 A0 06
W 00 81 01
R 00 RD
W 00 82
W 00 88
2
C Commands
[24]
Enter into setup mode
Do software reset
Enter into setup mode
Load factory defaults to SRAM
Save the configuration to flash. Wait for time specified in
“CapSense Express Commands”
Do software reset
Enter into setup mode
Configuring CapSense buttons
Save the configuration to flash. Wait for time specified in
“CapSense Express Commands”
Do software reset
Select CapSense button for reading scan result
Set the read point to 82h
Consecutive 6 reads get baseline, difference count and raw
count (all two byte each)
Set the read pointer to 88
Reading a byte gets status CapSense inputs
CY8C20160, CY8C20140
CY8C20110, CY8C20180
Comment
on page 17.
on page 17.
CY8C20142
Page 28 of 39
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