ADXL180
Rev. 0 | Page 53 of 56
SYEN
Table 58. Sync Enable (SYEN) Options
SYEN Definition
0
Synchronization pulse disabled. Device transmits data
according to state machine based on internal clock
every 228 μs when powered (default).
1
Synchronization pulse enabled. The device requires a
synchronization pulse to sample and transmit data
according to state machine.
AZE
Table 59. AZE Auto Zero Enable
AZE Definition
0
Auto-zero function is disabled. Phase 4 has no
messages. Device immediately moves to normal data
(Phase 5) after self-test (Phase 3). (Default.)
1
Auto-zero function enabled. See Auto-Zero Operation
section for details.
ERC
Table 60. Error Check (ERC) Bit Options
ERC Definition
0
3-bit CRC is included in message. Calculate CRC using the
polynomial x
3
+ x
1
+ x
0
. (Default.)
1
One parity bit is included in the message. CRC is not used.
It is a bit that is set such that even parity is achieved in
the transmitted message.
DAT
Table 61. DAT Data Bit Options
DAT Definition
0
10-bit data sensor data transmitted. 8-bit Phase 2
configuration data left-justified in 10-bit data frame
(default).
1
8-bit sensor data transmitted.
SVD
Table 62. SVD Data Bit Options
SVD Definition
0
State vector enabled (default).
1
State vector disabled, reduced data range used.
CUPAR AND CUPRG
Table 63. Device Configuration Bit Definitions
Name Setting
Definition
CUPAR
0
Data dependent setting
1
Data dependent setting
CUPRG 0
Configuration OTP memory not
programmed
1
Configuration OTP memory
programmed
