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SX8663 데이터시트(PDF) 45 Page - Semtech Corporation

부품명 SX8663
상세설명  Capacitive Button Matrix (up to 36) and Proximity Controller with Individual LED Drivers and Buzzer Output
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8663 데이터시트(HTML) 45 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
Rev5 4
th August 2011
© 2011 Semtech Corp.
www.semtech.com
45
SX8663
Capacitive Button Matrix (up to 36) and Proximity Controller
with Individual LED Drivers and Buzzer Output
5.5
Proximity (PS) Parameters
Proximity
Parameters
Address
Name
Bits
Description
0x2B
Reserved
7:0
Reserved (0x00)
7
Proximity enable:
0: OFF (PK=CAP11 if enabled) (default)
1: ON (PS = CAP11; PK =CAP10 if enabled)
6:5
Prox events to be reported on NIRQ:
00 : None
01 : Close (same as touch for buttons)
10 : Far (same as release for buttons)
11 : Both (default)
4:2
Defines the MK LEDs intensity during proximity “close” :
000: OFF, proximity status reported on GPIO7 (if set as GPO + Autoligth ON)
001: 3%
010: 5%
011: 8%
100: 10%
101: 12%
110 : 14%
111: 16% (default)
1
Reserved
0x2C
ProxCfg
0
Defines the Prox LED (GPIO7) status when a button (MK or PK) is touched:
0: OFF
1: ON (default)
7:4
Defines the delay between proximity “far” and start of fading out of MK LEDs
(single fading)
0x0: instantaneous (default)
0x1: 200 ms
0x2: 400 ms
0x3: 600ms
…
0xA: 2s
0xB: 4s
0xC: 6s
0xD: 8s
0xE: 10s
0xF: 12s
3:2
Defines the number of samples at the scan period for determining proximity
“far” status.
00 : no debounce, use incoming sample (default)
01 : 2 samples debounce
10 : 3 samples debounce
11 : 4 samples debounce
0x2D
ProxDebounce
1:0
Defines the number of samples at the scan period for determining proximity
“close” status.
00 : no debounce, use incoming sample (default)
01 : 2 samples debounce
10 : 3 samples debounce
11 : 4 samples debounce
0x2E
ProxHysteresis
7:0
Defines the proximity hysteresis corresponding to a percentage of the CAP
thresholds (defined in Table 12).
0x00: 0%
0x01: 1%
…
0x0A: 10% (default)
…



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