參數(shù)資料
型號(hào)： CAP1014-1-EZK
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 模擬信號(hào)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)： 60/73頁
文件大小： 945K
代理商： CAP1014-1-EZK
Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
SMSC CAP1014
63
Revision 1.64 (01-15-09)
DATASHEET
Bits 3 - 2 - LED10_CTL[1:0] - Determines the behavior of LED10.
Bits 1 - 0 - LED9_CTL[1:0] - Determines the behavior of LED9.
APPLICATION NOTE: When driving the LED / GPIOx output as a GPO, the LEDx_CTL[1:0] bits should be set to
00b.
APPLICATION NOTE: The PWM frequency is determined based on the selected LED behavior, the programmed
breathe period, and the programmed min and max duty cycles. For the Direct Mode, the
PWM frequency is calculated based on the programmed Rise and Fall times. If these area
set at 0, then the maximum PWM frequency will be used based on the programmed duty
cycle settings.
5.35
LED Pulse 1 Period Register
Table 5.50 LEDx_CTL Bit Decode
LEDX_CTL
[1:0]
OPERATION
- LINKED
WITH
SENSOR
OPERATION -
NOT LINKED
WITH SENSOR
DESCRIPTION
START
TRIGGER
STOP
TRIGGER
10
0
Direct
The LED is driven to the programmed
state (active or inactive).
Press
Detected
Release
Detected
01
Pulse Press
(Pulse 1)
Direct
The LED will breathe 5 times starting
based on the Start Trigger). The total
period of each “breath” is determined
by the LED Pulse 1 Period controls -
Press
Detected
n/a
10
Breathe Hold
+ Pulse
Release
(Pulse 2)
Breathe
The LED will breathe continuously
while the corresponding sensor detects
a press. When the sensor detects a
release, it will breathe 5 additional
times and then stop. The total period of
each “breath” is determined by the
LED Pulse 2 Period controls - see
Press
Detected
Release
Detected
1
Breathe
The LED will breathe. It will be driven
with a duty cycle that ramps up from
the programmed minimum duty cycle
(default 0%) to the programmed
maximum duty cycle duty cycle and
then back down. Each ramp takes up
50% of the programmed period. The
total period of each “breath” is
determined by the LED Breathe Period
controls - see Section 5.37.
Press
Detected
Release
Detected
Table 5.51 LED Behavior Registers
ADDR
R/W
REGISTER
B7
B6B5B4B3B2
B1
B0
DEFAULT
84h
R/W
LED Pulse 1
Period
-
P1_P
ER6
P1_P
ER5
P1_P
ER4
P1_P
ER3
P1_P
ER2
P1_P
ER1
P1_P
ER0
20h
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