参数资料
型号: MPR031EPR2
厂商: Freescale Semiconductor
文件页数: 6/33页
文件大小: 0K
描述: IC CTLR TOUCH SENSOR 8-DFN
产品培训模块: MPR03x - Low-Power Proximity Sensors
特色产品: MPR03x Proximity Capacitive Touch Sensor Controllers
标准包装: 1
类型: 电容性
触摸面板接口: 2 线
评估套件: 可供
数据接口: I²C,串行
数据速率/采样率 (SPS,BPS): 400k
电源电压: 1.71 V ~ 2.75 V
电流 - 电源: 43µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-UFDFN
供应商设备封装: 8-QFN-D(2x2)
包装: 标准包装
产品目录页面: 2808 (CN2011-ZH PDF)
配用: KITMPR03XEVM-ND - KIT EVAL FOR MPR03X
DEMOMPR031-ND - BOARD DEMO FOR MPR031 CTLR
其它名称: MPR031EPR2DKR
MPR03X
Sensors
14
Freescale Semiconductor
5.4
Baseline Values
In addition to the second level filter data, the data from the baseline filter (or third level filter) is also displayed. In this case, the
least two significant bits are removed before the 10-bit value is displayed in the register.
5.4.1
The Baseline Value register contains the third level filtered data on each of the electrodes. It is a truncated 10 bit A/D value
displayed in the 8 bit register. The address of the ELE0 Baseline Value register is 0x1A. The address of the ELE1 Baseline Value
register is 0x1B. The address of the ELE2 Baseline Value register is 0x1C.
Figure 20. Filtered Data High Register
7
6
543210
RBV
W
Reset:
0
000000
= Unimplemented
Table 9. Filtered Data High Register Field Descriptions
Field
Description
7:0
BV
Baseline Value – The Baseline Value byte displays the higher 8 bits of the 10 bit
baseline value.
00000000 Encoding 0 – The 10 bit baseline value is between 0 and 3.
~
11111111 Encoding 255 – The 10 bit baseline value is between 1020 and 1023.
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