PMMA7450LR2 Freescale Semiconductor, Inc, PMMA7450LR2 Datasheet - Page 15

• Manufacturer Part Number: PMMA7450LR2
• Description: ?2g/?4g/?8g Three Axis Low-g Digital Output Accelerometer
• Manufacturer: Freescale Semiconductor, Inc

$07: 8bits output value Y (Read only)
$08: 8bits output value Z (Read only)
$09: Status register (Read only)
$0A: Detection source register (Read only)
$0D: I2C Device Address (Bit 6-0: Read only, Bit 7: Read/Write)
Sensors
Freescale Semiconductor
YOUT[7]
ZOUT[7]
I2CDIS
LDX
Signed byte data (2’s compliment): Zero G = 8’h00
Signed byte data (2’s compliment): Zero G = 8’h00
DRDY
1: Data is ready
0: Data is not ready
DOVR
1: Data is over written
0: Data is not over written
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
I2CDIS
0: I2C and SPI are available.
1: I2C is disabled.
DVAD[6:0]: I2C device address
D7
D7
D7
D7
D7
--
0
0
0
0
0
YOUT [6]
ZOUT [6]
DVAD[6]
LDY
D6
D6
D6
D6
D6
0
0
--
0
0
0
YOUT [5]
ZOUT [5]
DVAD[5]
LDZ
D5
D5
D5
D5
D5
--
0
0
0
0
0
YOUT [4]
ZOUT [4]
DVAD[4]
PDX
D4
D4
D4
D4
D4
--
0
0
0
0
1
YOUT [3]
ZOUT [3]
DVAD[3]
PDY
D3
D3
D3
D3
D3
0
0
--
0
0
1
YOUT [2]
ZOUT [2]
DVAD[2]
PERR
PDZ
D2
D2
D2
D2
D2
0
0
0
0
1
YOUT [1]
ZOUT [1]
DVAD[1]
DOVR
INT2
D1
D1
D1
D1
D1
0
0
0
PERR
1: Parity error is detected in trim data. Then, self test is
disabled
0: Parity error is not detected in trim data
0
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
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
0
Note: This bit value is not valid at double pulse detection
YOUT [0]
ZOUT [0]
DVAD[0]
DRDY
INT1
D0
D0
D0
D0
D0
0
0
0
0
1
Function
Function
Function
Function
Function
Default
Default
Default
Default
Default
Bit
Bit
Bit
Bit
Bit
MMA7450L
15