ADIS16IMU5SLASHPCBZ datasheet(32/46 Pages) AD

32 / 46 page

Data Sheet

ADIS16575/ADIS16576/ADIS16577

USER REGISTER DEFINITIONS

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Rev. 0 | 32 of 46

Table 69. Delta Velocity Measurement Range (Continued)

Model

Measurement Range, ±ΔVMAX (m/sec)

ADIS16577

±400

X-Axis Delta Velocity (X_DELTVEL_LWR and

X_DELTVEL_UPR)

Table 70. X_DELTVEL_LWR Register Definition

Addresses

Default

Access

Flash Backup

0x30, 0x31

Not applicable

Table 71. X_DELTVEL_LWR Bit Definitions

Bits

Description

[15:0]

X-axis delta velocity data; low word; additional resolution bits

Table 72. X_DELTVEL_UPR Register Definition

Addresses

Default

Access

Flash Backup

0x32, 0x33

Not applicable

Table 73. X_DELTVEL_UPR Bit Definitions

Bits

Description

[15:0]

X-axis delta velocity data; high word; twos complement, 0 m/sec =

0x0000; 1 LSB = ΔVMAX ÷ 215 (see Table 69 for ΔVMAX)

The X_DELTVEL_LWR (see Table 70 and Table 71) and X_DELT-

VEL_UPR (see Table 72 and Table 73) registers contain the delta

velocity data for the x-axis.

Y-Axis Delta Velocity (Y_DELTVEL_LWR and

Y_DELTVEL_UPR)

Table 74. Y_DELTVEL_LWR Register Definition

Addresses

Default

Access

Flash Backup

0x34, 0x35

Not applicable

Table 75. Y_DELTVEL_LWR Bit Definitions

Bits

Description

[15:0]

Y-axis delta velocity data; low word; additional resolution bits

Table 76. Y_DELTVEL_UPR Register Definition

Addresses

Default

Access

Flash Backup

0x36, 0x37

Not applicable

Table 77. Y_DELTVEL_UPR Bit Definitions

Bits

Description

[15:0]

Y-axis delta velocity data; high word; twos complement, 0 m/sec =

0x0000; 1 LSB = ΔVMAX ÷ 215 (see Table 69 for ΔVMAX)

The Y_DELTVEL_LWR (see Table 74 and Table 75) and Y_DELT-

VEL_UPR (see Table 76 and Table 77) registers contain the delta

velocity data for the y-axis.

Z-Axis Delta Velocity (Z_DELTVEL_LWR and

Z_DELTVEL_UPR)

Table 78. Z_DELTVEL_LWR Register Definition

Addresses

Default

Access

Flash Backup

0x38, 0x39

Not applicable

Table 79. Z_DELTVEL_LWR Bit Definitions

Bits

Description

[15:0]

Z-axis delta velocity data; low word; additional resolution bits

Table 80. Z_DELTVEL_UPR Register Definition

Addresses

Default

Access

Flash Backup

0x3A, 0x3B

Not applicable

Table 81. Z_DELTVEL_UPR Bit Definitions

Bits

Description

[15:0]

Z-axis delta velocity data; high word; twos complement, 0 m/sec =

0x0000; 1 LSB = ΔVMAX ÷ 215 (see Table 69 for ΔVMAX)

The Z_DELTVEL_LWR (see Table 78 and Table 79) and Z_DELT-

VEL_UPR (see Table 80 and Table 81) registers contain the delta

velocity data for the z-axis.

Delta Velocity Data Formatting

Table 82 and Table 83 offer various numerical examples that dem-

onstrate the format of the delta velocity data in both 16-bit and

32-bit formats.

Table 82. 16-Bit Delta Velocity Data Format Examples

Velocity (m/sec)

Decimal

Hexadeci

mal

Binary

+ΔVMAX × (215 − 1)/215 +32,767

0x7FFF

0111 1111 1111 1111

+ΔVMAX/214

0x0002

0000 0000 0000 0010

+ΔVMAX/215

0x0001

0000 0000 0000 0001

0x0000

0000 0000 0000 0000

−ΔVMAX/215

−1

0xFFFF

1111 1111 1111 1111

−ΔVMAX/214

−2

0xFFFE

1111 1111 1111 1110

−ΔVMAX

−32,768

0x8000

1000 0000 0000 0000

Table 83. 32-Bit Delta Velocity Data Format Examples

Velocity (m/sec)

Decimal

Hexadecimal

+ΔVMAX × (231 − 1)/231

+2,147,483,647

0x7FFFFFFF

+ΔVMAX/230

0x00000002

+ΔVMAX/231

0x00000001

0x00000000

−ΔVMAX/231

−1

0xFFFFFFFF

−ΔVMAX/230

−2

0xFFFFFFFE

−ΔVMAX

+2,147,483,648

0x80000000

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