ADXL180
Rev. 0 | Page 12 of 56
User-Programmed Configuration
At each of these previously described points in the system, the
ADXL180 is highly configurable for different applications. The
organization and configurable items are briefly described in this
section but are covered in depth in the remainder of this data sheet.
Physical Layer (ISO Layer 1)
The bus interface hardware definition including the phase of
Manchester encoding and synchronization pulse enable/disable.
Data Link Layer (ISO Layer 2)
The specifics of the data frame format including the data width
(8-bit or 10-bit data), state vector (enable/disable), and error
detection (parity or CRC).
Application Layer (ISO Layer 7)
The serial number and configuration data transmission mode
and self-test (internal self-test pass/fail discrimination or
external self-test data evaluation).
Other signal processing related aspects of the function of the
ADXL180 can also be configured as follows:
•
Sensor scale factor (range)
•
Signal chain low-pass filter bandwidth
•
Auto-zero: enable/disable
•
User-defined data in the user data register
