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| 型号： | KITMPR121EVM |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 6/27页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION MPR121 |
| 产品培训模块： | MPR121: Low-Power Touch Sensor |
| 标准包装： | 1 |
| 传感器类型： | 近程 |
| 接口： | USB |
| 电源电压： | 5V，USB |
| 嵌入式： | 否 |
| 已供物品： | 4 个板，线缆，文档 |
| 已用 IC / 零件： | MPR121 |
| 产品目录页面： | 2808 (CN2011-ZH PDF) |
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MPR121
Sensors
14
Freescale Semiconductor, Inc.
5.8
Filter and Global CDC CDT Configuration (0x5C, 0x5D)
Filter/Global CDC Configuration Register (0x5C)
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Read
FFI
CDC
Write
Filter/Global CDT Configuration Register (0x5D)
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Read
CDT
SFI
ESI
Write
Table 8. Bit Descriptions
Field
Description
FFI
First Filter Iterations - The first filter iterations field selects the number of samples taken as
input to the first level of filtering.
00 Encoding 0 - Sets samples taken to 6 (Default)
01 Encoding 1 - Sets samples taken to 10
10 Encoding 2 - Sets samples taken to 18
11 Encoding 3 - Sets samples taken to 34
CDC
Charge Discharge Current - Selects the global value of charge discharge current applied to
electrode. The maximum is 63
μA, 1 μA step.
000000 Encoding 0 - Disable Electrode Charging
000001 Encoding 1 - Sets the current to 1
μA
~
010000 Encoding 16 - Sets the current to 16
μA (Default)
~
111111 Encoding 63 - Sets the current to 63
μA
CDT
Charge Discharge Time - Selects the global value of charge time applied to electrode.
The maximum is 32
μs, programmable as 2 ^(n-2) μs.
000 Encoding 0 - Disables Electrode Charging
001 Encoding 1 - Time is set to 0.5
μs (Default)
010 Encoding 2 - Time is set to 1
μs
~
111 Encoding 7 - Time is set to 32
μs
SFI
Second Filter Iterations - Selects the number of samples taken for the second level filter
00 Encoding 0 - Number of samples is set to 4 (Default)
01 Encoding 1 - Number of samples is set to 6
10 Encoding 2 - Number of samples is set to 10
11 Encoding 3 - Number of samples is set to 18
ESI
Electrode Sample Interval - Selects the period between samples used for the second level
of filtering. The maximum is 128ms, Programmable to 2^n ms
000 Encoding 0 - Period set to 1 ms
001 Encoding 1 - Period set to 2 ms
~
100 Encoding 4 - Period set to 16 ms (Default)
~
111 Encoding 7 - Period set to 128 ms
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相关代理商/技术参数 |
参数描述 |
|---|---|
| KITMPR121EVM | 制造商:Freescale Semiconductor 功能描述:Sensor Toolbox Proximity Sensor Kit |
| KITMPVZ5004EVK | 功能描述:压力传感器开发工具 WATER LEVEL BOARD RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度: |
| KITMPXA6115AEVB | 功能描述:压力传感器开发工具 Sensor Toolbx Pressu Sensor Developmt brd RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度: |
| KITMPXSHOWEVK | 功能描述:压力传感器开发工具 PRESSURE SHOWBOARD RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度: |
| KITMPXV5004DPEVB | 功能描述:压力传感器开发工具 MPXV5004 Dev Kit RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度: |
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