Aceinna IMU383 Series User Manual page 25

IMU383ZA Series User's Manual
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nSS
CLK
0x3E00
MOSI
N/A
MISO
Figure 7 Multiple Register Read via Burst-Mode
Burst-Read of Extended Data-Packet
The extended data-packet comprises data from multiple predefined registers. Table 8 lists the data
contained in an extended data packet. The registers are listed in the order in which they are sent
during extended burst-mode read. The extended data packet includes the same 8 data words from
the standard data packet, plus 2 additional data words which aid in the synchronization of the
DMU383ZA to an external 1kHz clock signal.
TIMESTAMP1 is a 16-bit value that represents the time (in µs) between the sensor sampling
point and the active edge of the external clock; TIMESTAMP2 is a 16-bit value representing the
time (in µs) between the active edge of the external clock and the DRDY signal. Note that these
TIMESTAMP values are only available as part of the extended data packet (cannot be read
individually in polled reads), since they are relative measurements and are linked directly to the
sensor values in the extended data packet.
Table 8 Extended Burst Mode Output Data Packet
Register Name
Doc# 7430-1398-01
0x0000 0x0000
STATUS X_RATE
STATUS System Status Word (same as in
X_RATE Rate Sensor Output (X-Axis)
Y_RATE Rate Sensor Output (Y-Axis)
Z_RATE Rate Sensor Output (Z-Axis)
X_ACCEL Accelerometer Output (X-Axis)
Y_ACCEL Accelerometer Output (Y-Axis)
Z_ACCEL Accelerometer Output (Z-Axis)
BOARD_TEMP System Temperature
TIMESTAMP1 Time in µs from sensor sampling to
active edge of synchronization clock
TIMESTAMP2 Time in µs from active edge of
synchronization clock to data ready
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0x0000
BOARD_
TEMP
Description
register 0x3C)
signal
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