RD3172MMA7455L Freescale Semiconductor, RD3172MMA7455L Datasheet - Page 49
![EVAL BOARD FOR MMA7455L](/photos/28/40/284048/rd3172mma7455l_sml.jpg)
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
5.3.6.2
The USB stick has three LED’s that indicate actual state of demo. First two LED’s have assign function to
RF protocol, the third one indicate state of USB communication and current running USB application
(serial port, mouse or keyboard). The first two LED’s allows user to check current state of demo:
Also the sensor board has a LED indicator of its current status. It has only a one LED that can tell to user
a few states of demo:
Freescale Semiconductor
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Broadcast state - in this state the ZSTAR3 USB Stick software is looking for the any sensor in range
and also is looking for the best possible channel for communication:
— RF channel scout out - LED1 blinks very slowly two times, LED2 is switched off
— ZSTAR3 sensor scout out - LED1 is switched off, LED2 blinks very bright and fast
RF network run state - this is normal work state of ZSTAR3 network. In this state LED1 blinks in
depends on received data messages from sensor, it could blink lightly irregular. LED2 blinks very
fast, but less bright as in broadcast mode.
LED is Off - Demo board sleeps.
LED is lightly blinking with frequency 6.5 Hz - Demo is in broadcast mode and it’s looking for
USB Stick. This state follows after wake-up of board.
LED is brightly blinking with frequency 17 Hz - Demo is still in broadcast mode, but it founds
own ZSTAR3 network (with right NetNum) and its position/index is occupied by any other sensor.
LED is lightly blinking with frequency 30 Hz - Demo is in run mode and it communicate with
USB Stick.
The ZSTAR3 RF protocol LED indication
DRM103, Rev. 2
Software Design
49