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CAP1214 Datasheet(PDF) 48 Page - Microchip Technology

Part # CAP1214
Description  Multiple Channel Capacitive Touch Sensor and LED Driver
PDF  107 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

CAP1214 Datasheet(HTML) 48 Page - Microchip Technology

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Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
Revision 1.0 (08-30-10)
48
SMSC CAP1214
DATASHEET
Bit 0 - PH - Indicates that a press and hold event was detected on one of the sensors within the Group.
the relative position of the press is indicated by the UP and DOWN bits so a touch and hold on the
“UP” side of the group will assert the UP bit as well as the PH bit. If the press and hold event is
detected in the “center” of the slider that is neither “UP” nor “DOWN”, the bit will be set; however, no
interrupt will be generated. This bit is sticky and will remain set until read. If the condition is still
present, this bit will be re-set when the interrupt is generated.
6.11
Sensor Delta Count Registers
The Sensor Delta Count Registers store the delta count that is compared against the threshold used
to determine if a touch has been detected. The count value represents a change in input due to the
capacitance associated with a touch on one of the sensors and is referenced to a calibrated base “Not
Touched” count value. The delta is an instantaneous change and is updated once per sensor per
sensing cycle (see Section 5.4.4 - sensor cycle).
Table 6.13 Sensor Delta Count Registers
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
10h
R
Sensor 1 Delta
Count
Sign
64
32
16
8
4
2
1
00h
11h
R
Sensor 2 Delta
Count
Sign
64
32
16
8
4
2
1
00h
12h
R
Sensor 3 Delta
Count
Sign
64
32
16
8
4
2
1
00h
13h
R
Sensor 4 Delta
Count
Sign
64
32
16
8
4
2
1
00h
14h
R
Sensor 5 Delta
Count
Sign
64
32
16
8
4
2
1
00h
15h
R
Sensor 6 Delta
Count
Sign
64
32
16
8
4
2
1
00h
16h
R
Sensor 7 Delta
Count
Sign
64
32
16
8
4
2
1
00h
17h
R
Sensor 8 Delta
Count
Sign
64
32
16
8
4
2
1
00h
18h
R
Sensor 9 Delta
Count
Sign
64
32
16
8
4
2
1
00h
19h
R
Sensor 10
Delta Count
Sign
64
32
16
8
4
2
1
00h
1Ah
R
Sensor 11
Delta Count
Sign
64
32
16
8
4
2
1
00h
1Bh
R
Sensor 12
Delta Count
Sign
64
32
16
8
4
2
1
00h
1Ch
R
Sensor 13
Delta Count
Sign
64
32
16
8
4
2
1
00h
1Dh
R
Sensor 14
Delta Count
Sign
64
32
16
8
4
2
1
00h



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