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CAP1298 Datasheet(PDF) 34 Page - Microchip Technology

No. de pieza CAP1298
Descripción Electrónicos  8-Channel Capacitive Touch Sensor Controller with Proximity Detection & Signal Guard
PDF  68 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

CAP1298 Datasheet(HTML) 34 Page - Microchip Technology

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CAP1298
DS00001571B-page 34
 2013-2015 Microchip Technology Inc.
5.8
Sensor Input Configuration Register
The Sensor Input Configuration Register controls timings associated with the capacitive sensor inputs.
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 (see Section 4.4.3, "Delayed Recalibration"), as shown in Table 5-
14.
Bits 3 - 0 - RPT_RATE[3:0] - (default 0100b) Determines the time duration between interrupt assertions when auto
repeat is enabled (see Section 4.9.2, "Capacitive Sensor Input Interrupt Behavior"). The resolution is 35ms and the
range is from 35ms to 560ms as shown in Table 5-15.
TABLE 5-13:
SENSOR INPUT CONFIGURATION REGISTER
Addr
R/W
Register
B7
B6
B5B4B3B2B1
B0
Default
22h
R/W
Sensor Input
Configuration
MAX_DUR[3:0]
RPT_RATE[3:0]
A4h
TABLE 5-14:
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
0
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



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