KITMPR121EVM Freescale Semiconductor, KITMPR121EVM Datasheet - Page 37

• Manufacturer Part Number: KITMPR121EVM
• Description: KIT EVALUATION MPR121
• Manufacturer: Freescale Semiconductor

Specifications of KITMPR121EVM

• Sensor Type: Proximity
• Interface: USB
• Voltage - Supply: 5V, USB
• Embedded: No
• Utilized Ic / Part: MPR121
• Interface Type: USB, I2C, SCI, SPI
• Operating Voltage: 3.3 V
• Data Bus Width: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MPR121, MC9S08QG8

Sensors
Freescale Semiconductor
TOUCH THRESHOLD REGISTER
RELEASE THRESHOLD REGISTER
Table 31. Touch Threshold Register Field Descriptions
Table 32. Release Threshold Register Field Descriptions
Reset:
Reset:
Field
Field
RTH
TTH
7:0
7:0
W
W
R
R
7
0
7
0
= Unimplemented
= Unimplemented
Touch Threshold – The Touch Threshold Byte sets the trip point for detecting a
touch.
00000000 Encoding 0
~
11111111 Encoding 255
Release Threshold – The Release Threshold Byte sets the trip point for detecting
a touch.
00000000 Encoding 0
~
11111111 Encoding 255
6
0
6
0
Figure 44. Release Threshold Register
Figure 43. Touch Threshold Register
5
0
5
0
4
0
4
0
RTH
TTH
Description
Description
3
0
3
0
2
0
2
0
1
0
1
0
0
0
0
0
MPR121
37