Freescale Semiconductor Accelerometer Cube Demo MMA9559LKUBE MMA9559LKUBE Hoja De Datos
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Los códigos de productos
MMA9559LKUBE
MMA955xL
Sensors
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
13
3.4.4
MMA955xL Platform as a Sensor Hub
The MMA955xL device includes:
•
•
a powerful 32-bit ColdFire V1 CPU
•
a second I
2
C bus
•
one external analog input
These features can all be monitored using the on-chip ADC.
The combination of low power consumption and powerful features means that the MMA955xL platform can effectively operate
as a power controller for handheld units such as industrial scanners, PDAs, and games. The host platform can put itself to sleep
with confidence that the MMA955xL device will issue a wake request should any external event require its attention.
as a power controller for handheld units such as industrial scanners, PDAs, and games. The host platform can put itself to sleep
with confidence that the MMA955xL device will issue a wake request should any external event require its attention.
The following figure illustrates the MMA955xL device being used in this configuration. Observe how all that is required is a few
bypass capacitors, a ferrite bead, and some pullup resistors for the I
bypass capacitors, a ferrite bead, and some pullup resistors for the I
2
C buses.
Figure 6. Platform as sensor hub
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