ADIS16505-2SLASHPCBZ datasheet(20/41 Pages) AD

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ADIS16505

Data Sheet

Rev. C | Page 20 of 41

32-Bit Burst Mode with BURST_SEL = 0

In 32-bit burst mode with BURST_SEL = 0, a burst contains

calibrated gyroscope and accelerometer data in 32-bit format.

This mode is appropriate for cases where there is averaging

(decimation) and/or low-pass filtering of the data.

SCLK

DIN

DOUT

0x6800

DIAG_STAT

X_GYRO_LOW

CHECKSUM

Figure 44. Burst Read Sequence with BURST_SEL = 0

The sequence of registers (and checksum value) in the burst

read includes the following registers and value: DIAG_STAT,

X_GYRO_LOW, X_GYRO_OUT, Y_GYRO_LOW,

Y_GYRO_OUT, Z_GYRO_LOW, Z_GYRO_OUT,

X_ACCL_LOW, X_ACCL_OUT, Y_ACCL_LOW,

Y_ACCL_OUT, Z_ACCL_LOW, Z_ACCL_OUT, TEMP_OUT,

DATA_ CNTR, and the checksum value. In these cases, use the

following formula to verify the 16-bit checksum value, treating

each byte in the formula as an independent, unsigned, 8-bit

number:

Checksum = DIAG_STAT, Bits[15:8] + DIAG_STAT, Bits[7:0] +

X_GYRO_LOW, Bits[15:8] + X_GYRO_LOW, Bits[7:0] +

X_GYRO_OUT, Bits[15:8] + X_GYRO_OUT, Bits[7:0] +

Y_GYRO_LOW, Bits[15:8] + Y_GYRO_LOW, Bits[7:0] +

Y_GYRO_OUT, Bits[15:8] + Y_GYRO_OUT, Bits[7:0] +

Z_GYRO_LOW, Bits[15:8] + Z_GYRO_LOW, Bits[7:0] +

Z_GYRO_OUT, Bits[15:8] + Z_GYRO_OUT, Bits[7:0] +

X_ACCL_LOW, Bits[15:8] + X_ACCL_LOW, Bits[7:0] +

X_ACCL_OUT, Bits[15:8] + X_ACCL_OUT, Bits[7:0] +

Y_ACCL_LOW, Bits[15:8] + Y_ACCL_LOW, Bits[7:0] +

Y_ACCL_OUT, Bits[15:8] + Y_ACCL_OUT, Bits[7:0] +

Z_ACCL_LOW, Bits[15:8] + Z_ACCL_LOW, Bits[7:0] +

Z_ACCL_OUT, Bits[15:8] + Z_ACCL_OUT, Bits[7:0] +

TEMP_OUT, Bits[15:8] + TEMP_OUT, Bits[7:0] +

DATA_CNTR, Bits[15:8] + DATA_CNTR, Bits[7:0]

32-Bit Burst Mode with BURST_SEL = 1

In 32-bit burst mode with BURST_SEL = 1, a burst contains

calibrated delta angle and delta velocity data in 32-bit format.

This mode is appropriate for cases where there is averaging

(decimation) and/or low-pass filtering of the data.

SCLK

DIN

DOUT

0x6800

DIAG_STAT

X_DELTANG_

LOW

CHECKSUM

Figure 45. Burst Read Sequence with BURST_SEL = 1

The sequence of registers (and checksum value) in the burst

read includes the following registers and value: DIAG_STAT,

X_DELTANG_LOW, X_DELTANG_OUT,

Y_DELTANG_LOW, Y_DELTANG_OUT,

Z_DELTANG_LOW, Z_DELTANG_OUT, X_DELTVEL_LOW,

X_DELTVEL_OUT, Y_DELTVEL_LOW, Y_DELTVEL_OUT,

Z_DELTVEL_LOW, Z_DELTVEL_OUT, TEMP_OUT, DATA_

CNTR, and the checksum value. In these cases, use the following

formula to verify the 16-bit checksum value, treating each byte

in the formula as an independent, unsigned, 8-bit number:

Checksum = DIAG_STAT, Bits[15:8] + DIAG_STAT, Bits[7:0] +

X_DELTANG_LOW, Bits[15:8] + X_DELTANG_LOW, Bits[7:0] +

X_DELTANG_OUT, Bits[15:8] + X_DELTANG_OUT, Bits[7:0] +

Y_DELTANG_LOW, Bits[15:8] + Y_DELTANG_LOW, Bits[7:0] +

Y_DELTANG_OUT, Bits[15:8] + Y_DELTANG_OUT, Bits[7:0] +

Z_DELTANG_LOW, Bits[15:8] + Z_DELTANG_LOW, Bits[7:0] +

Z_DELTANG_OUT, Bits[15:8] + Z_DELTANG_OUT, Bits[7:0] +

X_DELTVEL_LOW, Bits[15:8] + X_DELTVEL_LOW, Bits[7:0] +

X_DELTVEL_OUT, Bits[15:8] + X_DELTVEL_OUT, Bits[7:0] +

Y_DELTVEL_LOW, Bits[15:8] + Y_DELTVEL_LOW, Bits[7:0] +

Y_DELTVEL_OUT, Bits[15:8] + Y_DELTVEL_OUT, Bits[7:0] +

Z_DELTVEL_LOW, Bits[15:8] + Z_DELTVEL_LOW, Bits[7:0] +

Z_DELTVEL_OUT, Bits[15:8] + Z_DELTVEL_OUT, Bits[7:0] +

TEMP_OUT, Bits[15:8] + TEMP_OUT, Bits[7:0] +

DATA_CNTR, Bits[15:8] + DATA_CNTR, Bits[7:0]

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