- 您现在的位置：买卖IC网 > Sheet目录986 > KIT3803MMA7660FC (Freescale Semiconductor)KIT EVALUATION FOR MMA7660FC
Orientation Detection
Orientation Detection Logic
MMA7660FC gives the customer the capability to do orientation detection for such applications as Portrait/Landscape in
Mobile Phone/PDA/ PMP. The tilt orientation of the device is in 3 dimensions and is identified in its last known static position. This
enables a product to set its display orientation appropriately to either portrait/landscape mode, or to turn off the display if the
product is placed upside down. The sensor provides six different positions including: Left, Right, Up, Down, Back, and Front,
shown in Table 7 . In Active Mode the data is processed and updates the orientation positions in the TILT (0x03) register. At each
measurement interval, it computes new values for Left, Right, Up, Down, Back, and Front but it does not automatically update
these bits in the TILT (0x03) register. These values are updated depending on the debounce filter settings (SR Register 0x08)
configured by the customer.
In order to give the customer the ability to configure the debounce filter, specific to there application, they can change the
following bits in the SR (0x08) register, FILT [2:0]. Please see below for a more detailed explanation of how the FILT [2:0] works
in conjunction with updating the TILT (0x03) register:
? If FILT [2:0] = 000, then the new values for Left, Right, Up, Down, Back, and Front are updated in the TILT (0x03) register
(PoLa [2:0] and BaFro [1:0]) after every reading without any further analysis.
? If FILT [2:0] = 001 – 111, then the sensor requires the computed values for Left, Right, Up, Down, Back, and Front to be the
same from 1-7 consecutive readings (depending on the value in FILT [2:0], before updating the values stored in TILT (0x03)
register (PoLa [2:0] and BaFro [1:0]). The debounce counter is reset after a mismatched reading or the TILT (0x03) register
is updated (if the orientation condition is met).
Table 7. Orientation Detection Logic of when Interrupt will Occur
Orientation
Xg
Yg
Zg
Shake
|X| > +1.3g
or
|Y| > +1.3g
or
|Z| > +1.3g
Up
Down
Right
Left
Back
Front
|Z| < 0.8g and |X| > |Y| and X < 0
|Z| < 0.8g and |X| > |Y| and X > 0
|Z| < 0.8g and |Y| > |X| and Y < 0
|Z| < 0.8g and |Y| > |X| and Y > 0
Front
Up
Z < -0.25g
Z > 0.25g
Left
Right
Down
Back
Figure 6. Orientation Detection Logic in 3-Dimensional Space
MMA7660FC
Sensors
Freescale Semiconductor, Inc.
12
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
KITMMA9550LEVM
KIT EVALUATION FOR MMA955XL
KITMMA955XLEVM
KIT EVALUATION FOR MMA955XL
KITMPL115A1EVB
KIT EVALUATION FOR MPL115A1
KITMPL115A1SPI
KIT EVALUATION FOR PL115A1SP1
KITMPL115A2I2C
KIT EVALUATION FOR PL115A2I2C
KITMPVZ5004EVK
KIT EVAL PRESSURE SENS BOARD
KN500B1/4
SWITCH KNOB STRAIGHT .50" BLACK
KN5700B1/4
SWITCH KNOB STRAIGHT .75" BLACK
相关代理商/技术参数
KIT3803MMA7660FC
制造商:Freescale Semiconductor 功能描述:Accelerometer Daughterboard
KIT38073
功能描述:以太网和电信连接器 RJ KIT EMI SHIELDED PANEL MOUNT RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级:
KIT38081
功能描述:以太网和电信连接器 EMI SHIELD PLUG KIT RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级:
KIT38081NI
功能描述:以太网和电信连接器 Kit EMI Shield Plug RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级:
KIT38082
功能描述:以太网和电信连接器 EMI SHIELD RECPT KIT RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级:
KIT38082NI
功能描述:以太网和电信连接器 RJ KIT EMI SHIELDED RECPT RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级:
KIT38204
功能描述:以太网和电信连接器 RJ KIT EMI SHIELDED RECPT RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级:
KIT38204NI
制造商:Amphenol PCD 功能描述:RJFTV SERIES - Bulk