Syen; Aze; Erc; Dat - Analog Devices ADXL180 iMEMS Manual

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
3 1
polynomial x + x + x
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.
0
. (Default.)

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
CUPAR 0
1
CUPRG 0
1
Rev. 0 | Page 53 of 56
ADXL180
Definition
Data dependent setting
Data dependent setting
Configuration OTP memory not
programmed
Configuration OTP memory
programmed