RD3172MMA7455L Freescale Semiconductor, RD3172MMA7455L Datasheet - Page 51
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RD3172MMA7455L
Manufacturer Part Number
RD3172MMA7455L
Description
EVAL BOARD FOR MMA7455L
Manufacturer
Freescale Semiconductor
Series
ZSTAR3r
Datasheets
1.RD3172MMA7455L.pdf
(35 pages)
2.RD3172MMA7455L.pdf
(2 pages)
3.RD3172MMA7455L.pdf
(100 pages)
Specifications of RD3172MMA7455L
Design Resources
ZSTAR3 Schematic
Sensor Type
Accelerometer, 3 Axis
Sensing Range
±2g, 4g, 8g
Interface
RF
Sensitivity
16, 32, 64 LSB/g
Voltage - Supply
3V
Embedded
Yes, MCU, 16-Bit
Utilized Ic / Part
MMA7455
Acceleration
5000 g
Sensing Axis
Triple Axis
Output Type
Digital
Interface Type
I2C, SPI
Operating Voltage
3.6 L
Operating Current
490 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
MMA7455L
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
RD3172MMA7455L
Manufacturer:
Freescale Semiconductor
Quantity:
135
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5.4.2
The ZSTAR3 software contains all slightly changed original ZSTAR commands.
Freescale Semiconductor
Command
Length of reply with measured data depends on current work mode, 8/16bits. 6 bytes for 8 bits, 9 bytes for 16 bit mode
Length of reply with calibration values depends on current work mode, 8/16bits. 9 bytes for 8 bits, 15 bytes for 16 bit mode
If a connected sensor has the ZSTAR3 protocol, then this command returns ideal calibration constants
Length of the calibration data command depends on current work mode, 8/16bits. 7 bytes for 8 bits, 13 bytes for 16 bit mode
If a connected sensor has ZSTAR3 protocol, then the calibration data command isn’t important
‘G’
‘R’
‘V’
‘K’
‘g’
‘k’
xg(0), xg(1), yg(0), yg(1), zg(0), zg(1),
Subset of Original ZSTAR Protocol Commands
''X' g(0) g(1) 'Y' g(0) g(1) 'Z' g(0) g(1)
Detail of Command Data
''x' value 'y' value 'z' value
g-select value,
Normal Command
g-select value
result
‘N’
Blue
Red
‘G’, result
Table 5-5. Original STAR Commands
Table 5-6. Legend of Colors
‘K’,
DRM103, Rev. 2
Direction USB stick -> PC, regular data
Length
7
2,
1,. 9
Legend
4
tx/rx
1,6
1,
1,
(B)
,
0,
0,
1
1
1
2
2
2
Direction PC -> USB stick
Extended Asynchronous
{'g',result,index}
{'k',result,index}
Detail
-
-
-
-
Answer
Length
rx (B)
7
7
-
-
-
-
write calibration values
read calibration values
Read acceleration data
Reset to 8 bit mode
g-select write
g-select read
Software Design
Note
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