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MMA7455LR1 Datasheet(PDF) 21 Page - Freescale Semiconductor, Inc

Part # MMA7455LR1
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

MMA7455LR1 Datasheet(HTML) 21 Page - Freescale Semiconductor, Inc

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Sensors
Freescale Semiconductor
21
MMA7455L
REGISTER DEFINITIONS
Signed byte data (2’s compliment): 0g = 10’h000
Reading low byte XOUTL latches high byte XOUTH to allow 10-bit reads.
XOUTH should be read directly following XOUTL read.
Table 9. User Register Summary
Address
Name
Definition
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
$00
XOUTL
10 bits output value X LSB
XOUT[7]
XOUT[6]
XOUT[5]
XOUT[4]
XOUT[3]
XOUT[2]
XOUT[1]
XOUT[0]
$01
XOUTH
10 bits output value X MSB
--
--
--
--
--
--
XOUT[9]
XOUT[8]
$02
YOUTL
10 bits output value Y LSB
YOUT[7]
YOUT[6]
YOUT[5]
YOUT[4]
YOUT[3]
YOUT[2]
YOUT[1]
YOUT[0]
$03
YOUTH
10 bits output value Y MSB
--
--
--
--
--
--
YOUT[9]
YOUT[8]
$04
ZOUTL
10 bits output value Z LSB
ZOUT[7]
ZOUT[6]
ZOUT[5]
ZOUT[4]
ZOUT[3]
ZOUT[2]
ZOUT[1]
ZOUT[0]
$05
ZOUTH
10 bits output value Z MSB
--
--
--
--
--
--
ZOUT[9]
ZOUT[8]
$06
XOUT8
8 bits output value X
XOUT[7]
XOUT[6]
XOUT[5]
XOUT[4]
XOUT[3]
XOUT[2]
XOUT[1]
XOUT[0]
$07
YOUT8
8 bits output value Y
YOUT[7]
YOUT[6]
YOUT[5]
YOUT[4]
YOUT[3]
YOUT[2]
YOUT[1]
YOUT[0]
$08
ZOUT8
8 bits output value Z
ZOUT[7]
ZOUT[6]
ZOUT[5]
ZOUT[4]
ZOUT[3]
ZOUT[2]
ZOUT[1]
ZOUT[0]
$09
STATUS
Status registers
--
--
--
--
--
PERR
DOVR
DRDY
$0A
DETSRC
Detection source registers
LDX
LDY
LDZ
PDX
PDY
PDZ
INT2
INT1
$0B
TOUT
“Temperature output value” (Optional)
TMP[7]
TMP[6]
TMP[5]
TMP[4]
TMP[3]
TMP[2]
TMP[1]
TMP[0]
$0C
(Reserved)
--
--
--
--
--
--
--
--
$0D
I2CAD
I2C device address
I2CDIS
DAD[6]
DAD[5]
DAD[4]
DAD[3]
DAD[2]
DAD[1]
DAD[0]
$0E
USRINF
User information (Optional)
UI[7]
UI[6]
UI[5]
UI[4]
UI[3]
UI[2]
UI[1]
UI[0]
$0F
WHOAMI
“Who am I” value (Optional)
ID[7]
ID[6]
ID[5]
ID[4]
ID[3]
ID[2]
ID[1]
ID[0]
$10
XOFFL
Offset drift X value (LSB)
XOFF[7]
XOFF[6]
XOFF[5]
XOFF[4]
XOFF[3]
XOFF[2]
XOFF[1]
XOFF[0]
$11
XOFFH
Offset drift X value (MSB)
--
--
--
--
--
XOFF[10]
XOFF[9]
XOFF[8]
$12
YOFFL
Offset drift Y value (LSB)
YOFF[7]
YOFF[6]
YOFF[5]
YOFF[4]
YOFF[3]
YOFF[2]
YOFF[1]
YOFF[0]
$13
YOFFH
Offset drift Y value (MSB)
--
--
--
--
--
YOFF[10]
YOFF[9]
YOFF[8]
$14
ZOFFL
Offset drift Z value (LSB)
ZOFF[7]
ZOFF[6]
ZOFF[5]
ZOFF[4]
ZOFF[3]
ZOFF[2]
ZOFF[1]
ZOFF[0]
$15
ZOFFH
Offset drift Z value (MSB)
--
--
--
--
--
ZOFF[10]
ZOFF[9]
ZOFF[8]
$16
MCTL
Mode control
--
DRPD
SPI3W
STON
GLVL[1]
GLVL[0]
MOD[1]
MOD[0]
$17
INTRST
Interrupt latch reset
--
--
--
--
--
--
CLRINT2
CLRINT1
$18
CTL1
Control 1
DFBW
THOPT
ZDA
YDA
XDA
INTRG[1]
INTRG[0]
INTPIN
$19
CTL2
Control 2
--
--
--
--
--
DRVO
PDPL
LDPL
$1A
LDTH
Level detection threshold limit value
LDTH[7]
LDTH[6]
LDTH[5]
LDTH[4]
LDTH[3]
LDTH[2]
LDTH[1]
LDTH[0]
$1B
PDTH
Pulse detection threshold limit value
PDTH[7]
PDTH[6]
PDTH[5]
PDTH[4]
PDTH[3]
PDTH[2]
PDTH[1]
PDTH[0]
$1C
PW
Pulse duration value
PD[7]
PD[6]
PD[5]
PD[4]
PD[3]
PD[2]
PD[1]
PD[0]
$1D
LT
Latency time value
LT[7]
LT[6]
LT[5]
LT[4]
LT[3]
LT[2]
LT[1]
LT[0]
$1E
TW
Time window for 2nd pulse value
TW[7]
TW[6]
TW[5]
TW[4]
TW[3]
TW[2]
TW[1]
TW[0]
$1F
(Reserved)
--
--
--
--
--
--
--
--
$00: 10bits Output Value X LSB (Read only)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
XOUT [7]
XOUT [6]
XOUT [5]
XOUT [4]
XOUT [3]
XOUT [2]
XOUT [1]
XOUT[0]
Function
0
0
0
0
0
0
0
0
Default



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