MMA7455L(2007) Ver la hoja de datos (PDF) - Freescale Semiconductor
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MMA7455L Datasheet PDF : 27 Pages
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$07: 8bits output value Y (Read only)
D7
D6
D5
D4
D3
D2
YOUT[7] YOUT [6] YOUT [5] YOUT [4] YOUT [3] YOUT [2]
0
0
0
0
0
0
Signed byte data (2’s compliment): Zero G = 8’h00
D1
YOUT [1]
0
D0
YOUT [0]
0
Bit
Function
Default
$08: 8bits output value Z (Read only)
D7
D6
D5
D4
D3
D2
ZOUT[7] ZOUT [6] ZOUT [5] ZOUT [4] ZOUT [3] ZOUT [2]
0
0
0
0
0
0
Signed byte data (2’s compliment): Zero G = 8’h00
D1
ZOUT [1]
0
D0
ZOUT [0]
0
Bit
Function
Default
$09: Status register (Read only)
D7
D6
D5
D4
--
--
--
--
0
0
0
0
DRDY
1: Data is ready
0: Data is not ready
DOVR
1: Data is over written
0: Data is not over written
D3
D2
D1
D0
Bit
--
PERR
DOVR
DRDY Function
0
0
0
0
Default
PERR
1: Parity error is detected in trim data. Then, self test is
disabled
0: Parity error is not detected in trim data
$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
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 “Detection control” register is de-
tected
0: Interrupt assigned by “Detection control” register is not
detected
INT2
1: Interrupt assigned by “Detection control” register is de-
tected
0: Interrupt assigned by “Detection control” register is not
detected
*Note: Must define DRDY to be an output to either INT1
or not.
Note: Bit weight is for 2g 8 bit data output. Typical value for reference only. Variation is specified in "Electrical Char-
acteristics" section.
$0D: I2C Device Address (Bit 6-0: Read only, Bit 7: Read/Write)
D7
I2CDIS
0
D6
DVAD[6]
0
D5
DVAD[5]
0
D4
DVAD[4]
1
D3
DVAD[3]
1
D2
DVAD[2]
1
D1
DVAD[1]
0
D0
DVAD[0]
1
Bit
Function
Default
I2CDIS
0: I2C and SPI are available.
1: I2C is disabled.
DVAD[6:0]: I2C device address
MMA7455L
16
Sensors
Freescale Semiconductor
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