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參數(shù)資料
| 型號： | CAP1014-1-EZK |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, QCC32 |
| 封裝： | 5 X 5 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-32 |
| 文件頁數(shù)： | 38/73頁 |
| 文件大小： | 945K |
| 代理商： | CAP1014-1-EZK |
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Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
SMSC CAP1014
43
Revision 1.64 (01-15-09)
DATASHEET
‘0’ - The noise threshold is enabled and checked. If a sample is above the noise threshold, it is not
included in the re-calibration routine.
‘1’ (default) - The noise threshold is disabled. No samples are excluded from the re-calibration
routine.
Bit 4 - BLK_NOISE_DIS - Determines whether the noise flag setting will block a touch detection as
well as the analog calibration routine.
‘0’ (default) - If the analog noise bit is set, then a touch is blocked on the corresponding channel
and will force the analog calibration routine to retry.
‘1’ - A touch is not blocked even if the analog noise bit is set. Likewise, the analog calibration
routine will not retry if the analog noise bit is set.
Bit 3 - MAX_DUR_EN_B - Determines whether the maximum duration recalibration is enabled for non-
grouped sensors.
‘0’ - The maximum duration recalibration functionality is disabled. A press may be held indefinitely
and no re-calibration will be performed on any button.
‘1’ (default) - The maximum duration recalibration functionality is enabled. If a press is held for
longer than the MAX_DUR_B bit settings, then the re-calibration routine will be restarted (see
APPLICATION NOTE: If the RPT_EN_B bit is updated while a touch is present on a button, then no changes will
be made to the interrupts until that button has been released.
Bit 2 - RPT_EN_B - Determines the interrupt mechanism used when a press is detected on a non-
grouped sensor (button)
‘0’ - An interrupt will be generated when a touch is detected and again when a release is detected.
‘1’ (default) - An interrupt will be generated when a touch is detected and at the programmed repeat
rate so long as the button is pressed.
Bit 1 - MAX_DUR_EN_G - Determines whether the maximum duration recalibration is enabled for
grouped sensors.
‘0’ (default) - The maximum duration recalibration functionality is disabled. A press may be held
indefinitely and no re-calibration will be performed on any button.
‘1’ - The maximum duration recalibration functionality is enabled. If a press is held for longer than
the MAX_DUR_G bit settings, then the re-calibration routine will be restarted (see Section 5.17).
Bit 0 - RPT_EN_G - Determines the interrupt mechanism used when a Press and Hold event is
detected on a grouped sensor
‘0’ (default) - An interrupt will be generated when a Press and Hold event is detected.
‘1’ - An interrupt will be generated when a Press and Hold event is detected and at the programmed
repeat rate so long as the sensor is pressed.
5.14
Sensor Enable Registers
The Sensor Enable registers determine whether a Capacitive Touch Sensor input is included in the
sampling cycle. The length of the sampling cycle is not affected by the number of sensors measured.
Table 5.19 Sensor Enable Registers
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
21h
R/W
Sensor Enable
G_EN
S7_EN
S6_EN
S5_EN
S4_EN
S3_EN
S2_EN
S1_EN
FFh
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相關(guān)代理商/技術(shù)參數(shù) |
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| CAP1014-1-EZK-TR | 制造商:SMSC 制造商全稱:SMSC 功能描述:Multiple Channel Capacitive Touch Sensor and LED Driver |
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| CAP1028 | 制造商:SMSC 制造商全稱:SMSC 功能描述:8 Channel Capacitive Touch Sensor with 2 LED Drivers |
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