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CAP1133 Datasheet(PDF) 27 Page - Microchip Technology

Part # CAP1133
Description  3 Channel Capacitive Touch Sensor with 3 LED Drivers
PDF  63 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

CAP1133 Datasheet(HTML) 27 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS00001625B-page 27
CAP1133
6.8
Sensor Input Configuration Register
The Sensor Input Configuration Register controls timings associated with the Capacitive sensor inputs 1 - 3.
Bits 7 - 4 - MAX_DUR[3:0] - (default 1010b) - Determines the maximum time that a sensor pad is allowed to be touched
until the capacitive touch sensor input is recalibrated, as shown in Table 6-13.
Bits 3 - 0 - RPT_RATE[3:0] - (default 0100b) Determines the time duration between interrupt assertions when auto
repeat is enabled. The resolution is 35ms the range is from 35ms to 560ms as shown in Table 6-14.
TABLE 6-12:
SENSOR INPUT CONFIGURATION REGISTER
ADDR
R/W
Register
B7
B6
B5B4B3B2B1B0
Default
22h
R/W
Sensor Input
Configuration
MAX_DUR[3:0]
RPT_RATE[3:0]
A4h
TABLE 6-13:
MAX_DUR BIT DECODE
MAX_DUR[3:0]
Time Before Recalibration
32
1
0
0
0
0
0
560ms
0
0
0
1
840ms
0
0
1
0
1120ms
0
0
1
1
1400ms
0
1
0
0
1680ms
0
1
0
1
2240ms
0
1
1
0
2800ms
1
1
1
3360ms
1
0
0
0
3920ms
1
0
0
1
4480ms
1
0
1
0
5600ms (default)
1
0
1
1
6720ms
1
1
0
0
7840ms
1
1
0
1
8906ms
1
1
1
0
10080ms
1
1
1
1
11200ms
TABLE 6-14:
RPT_RATE BIT DECODE
RPT_RATE[3:0]
Interrupt Repeat RATE
32
1
0
00
0
0
35ms
00
0
1
70ms
0
0
1
0
105ms
0
0
1
1
140ms
0
1
0
0
175ms (default)
0
1
0
1
210ms
0
1
1
0
245ms
0
1
1
1
280ms
1
0
0
0
315ms
1
0
0
1
350ms
1
0
1
0
385ms



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