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MMA7456LR2 Datasheet(PDF) 24 Page - Freescale Semiconductor, Inc |
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MMA7456LR2 Datasheet(HTML) 24 Page - Freescale Semiconductor, Inc |
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24 / 36 page  Sensors 24 Freescale Semiconductor MMA7456L I2CDIS 0: I2C and SPI are available. 1: I2C is disabled. DVAD[6:0]: I2C device address UI2[7:0]: User information Signed byte data (2’s compliment): User level offset trim value for X-axis *Bit weight is for 8g 10bit data output. Typical value for reference only. Variation is specified in “Electrical Characteristics” section. Signed byte data (2’s compliment): User level offset trim value for X-axis Signed byte data (2’s compliment): User level offset trim value for Y-axis *Bit weight is for 2g 8bit data output. Typical value for reference only. Variation is specified in “Electrical Characteristics” section. $0D: I2C Device Address (Bit 6-0: Read only, Bit 7: Read/Write) D7 D6 D5 D4 D3 D2 D1 D0 Bit I2CDIS DVAD[6] DVAD[5] DVAD[4] DVAD[3] DVAD[2] DVAD[1] DVAD[0] Function 0 0 0 1 1 1 0 1 Default $0E: User Information (Read Only: Optional) D7 D6 D5 D4 D3 D2 D1 D0 Bit UI[7] UI[6] UI[5] UI[4] UI[3] UI[2] UI[1] UI[0] Function 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP Default $0F: “Who Am I” Value (Read only: Optional) D7 D6 D5 D4 D3 D2 D1 D0 Bit ID[7] ID [6] ID [5] ID [4] ID [3] ID [2] ID [1] ID [0] Function 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP 0/OTP Default $10: Offset Drift X LSB (Read/Write) The following Offset Drift Registers are used for setting and storing the offset calibrations to eliminate the 0g offset. Please refer to Freescale application note AN3745 for detailed instructions on the process to set and store the calibration values. D7 D6 D5 D4 D3 D2 D1 D0 Bit XOFF[7] XOFF [6] XOFF [5] XOFF [4] XOFF [3] XOFF [2] XOFF [1] XOFF [0] Function 0 0 0 0 0 0 0 0 Default Bit XOFF[7] XOFF[6] XOFF[5] XOFF[4] XOFF[3] XOFF[2] XOFF[1] XOFF[0] Weight* 64 LSB 32 LSB 16 LSB 8 LSB 4 LSB 2 LSB 1 LSB 0.5 LSB $11: Offset Drift X MSB (Read/Write) D7 D6 D5 D4 D3 D2 D1 D0 Bit -- -- -- -- -- XOFF [10] XOFF [9] XOFF [8] Function 0 0 0 0 0 0 0 0 Default $12: Offset Drift Y LSB (Read/Write) D7 D6 D5 D4 D3 D2 D1 D0 Bit YOFF[7] YOFF [6] YOFF [5] YOFF [4] YOFF [3] YOFF [2] YOFF [1] YOFF [0] Function 0 0 0 0 0 0 0 0 Default Bit YOFF[7] YOFF[6] YOFF[5] YOFF[4] YOFF[3] YOFF[2] YOFF[1] YOFF[0] Weight* 64 LSB 32 LSB 16 LSB 8 LSB 4 LSB 2 LSB 1 LSB 0.5 LSB |
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