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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)： | 51/73頁 |
| 文件大?。?/td> | 945K |
| 代理商： | CAP1014-1-EZK |
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Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
SMSC CAP1014
55
Revision 1.64 (01-15-09)
DATASHEET
‘0’ - The device will not generate extra interrupts during or after the slide has been detected.
‘1’ (default) - The device will generate extra interrupts after an accelerated slide is detected. The
number of extra interrupts generated will be proportional to the speed of the accelerated slide but
will not exceed the maximum number of extra interrupts as determined by the MAX_INT bits.
Bits 6-4 - MAX_INT[2:0] - (default 100b) Determine the maximum number of extra interrupts that will
be generated after a single slide (regardless of length). The variable “T” is the actual slide time and
the parameter SLIDE_TIME is set by bits [3:2] of this register.
Bits 3-2 - SLIDE_TIME[1:0] - (default 01b) - Determines how fast a slide must be to generate extra
interrupts. This is the maximum slide time that will result in extra interrupts being generated. If the slide
time is greater than SLIDE_TIME, no extra interrupts will be generated.
Bits 1 - 0 - RPT_SCALE[1:0] - (default 01b) - Determines how much to increase the Repeat Rate
based on slide speed. The slide speed is determined by counting how many sensors are touched in
approximately 100msec. The Repeat Rate is then increased various amounts based on the
RPT_SCALE parameter.
When read in Table 5.41, the repeat rate given is the number of measurement cycles between
interrupts generated.
Table 5.39 MAX_INT Bit decode
MAX_INT[2:0]
MAX #
INTERRUPTS
# INTERRUPTS
FOR T < 1/2
SLIDE_TIME
# INTERRUPTS
FOR 1/2 < T <
3/4 SLIDE_TIME
# INTERRUPTS
FOR 3/4 < T <
FULL
SLIDE_TIME
21
0
00
0
00
1
0
01
0
2
1
0
01
1
3
1
0
10
0
4
2
1
10
1
5
2
1
11
0
6
3
1
11
1
7
3
1
Table 5.40 SLIDE_TIME Bit Decode
SLIDE_TIME[1:0]
APPROXIMATE SLIDE TIME (MSEC)
10
0
350
0
1
560 (default)
1
0
770
1
980
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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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