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MMA7456LR2 Datasheet(PDF) 23 Page - Freescale Semiconductor, Inc

Part # MMA7456LR2
Description  짹2g/짹4g/짹8g Three Axis Low-g Digital Output Accelerometer
PDF  35 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MMA7456LR2 Datasheet(HTML) 23 Page - Freescale Semiconductor, Inc

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Sensors
Freescale Semiconductor
23
MMA7456L
Signed byte data (2’s complement): 0g = 8’h00
DRDY
1: Data is ready
0: Data is not ready
DOVR
1: Data is over written
0: Data is not over written
PERR
1: Parity error is detected in trim data. Then, self-test is dis-
abled
0: Parity error is not detected in trim data
LDX
1: Level detection detected on X-axis
0: Level detection not detected on X-axis
LDY
1: Level detection detected on Y-axis
0: Level detection not detected on Y-axis
LDZ
1: Level detection detected on Z-axis
0: Level detection not detected on Z-axis
PDX *Note
1: Pulse is detected on X-axis at single pulse detection
0: Pulse is not detected on X-axis at single pulse detection
PDY *Note
1: Pulse is detected on Y-axis at single pulse detection
0: Pulse is not detected on Y-axis at single pulse detection
PDZ *Note
1: Pulse is detected on Z-axis at single pulse detection
0: Pulse is not detected on Z-axis at single pulse detection
Note: This bit value is not valid at double pulse detection
INT1
1: Interrupt assigned by INTRG[1:0] bits in Control 1
Register ($18) and is detected
0: Interrupt assigned by INTRG[1:0] bits in Control 1
Register ($18) and is not detected
INT2
1: Interrupt assigned by INTRG[1:0] bits in Control 1
Register ($18) and is detected
0: Interrupt assigned by INTRG[1:0] bits in Control 1
Register ($18) and is not detected
*Note: Must define DRDY to be an output to either INT1 or
not. This is done through bit DRPD located in Register $16.
I2CDIS
0: I2C and SPI are available.
1: I2C is disabled.
DVAD[6:0]: I2C device address
UI2[7:0]: User information
$08: 8bits Output Value Z (Read only)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
ZOUT[7]
ZOUT [6]
ZOUT [5]
ZOUT [4]
ZOUT [3]
ZOUT [2]
ZOUT [1]
ZOUT [0]
Function
0
0
0
0
0
0
0
0
Default
$09: Status Register (Read only)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
--
--
--
--
--
PERR
DOVR
DRDY
Function
0
0
0
0
0
0
0
0
Default
$0A: Detection Source Register (Read only)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
LDX
LDY
LDZ
PDX
PDY
PDZ
INT2
INT1
Function
0
0
0
0
0
0
0
0
Default
$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



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