AN3393 datasheet(38/103 Pages) STMICROELECTRONICS

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AN3393

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DocID018750 Rev 4

4.44

THRS1_2 (77h)

Threshold value for State Machine 2 conditions. Data are in two’s complement.

1LSb = FS/2^7.

4.45

DES2 (78h)

Decimation counter value for State Machine 2. More information in Section 5.4.

4.46

MASK2_B (79h)

Axis and sign mask (swap) for State Machine 2 motion-detection operation. For more

information refer to Section 7.

4.47

MASK2_A (7Ah)

Axis and sign mask (default) for State Machine 2 motion-detection operation. For more

information refer to Section 7.

Table 69. THRS1_2 default values

00000000

Table 70. DES2 default values

00000000

Table 71. MASK2_B axis and sign mask register

P_X

N_X

P_Y

N_Y

P_Z

N_Z

P_V

N_V

Table 72. MASK2_B register description

P_X

0 = X+ disabled, 1 = X+ enabled

N_X

0 = X- disabled, 1 = X- enabled

P_Y

0 = Y+ disabled, 1 = Y+ enabled

N_Y

0 = Y- disabled, 1 = Y- enabled

P_Z

0 = Z+ disabled, 1 = Z+ enabled

N_Z

0 = Z - disabled, 1 = Z- enabled

P_V

0 = V+ disabled, 1 = V+ enabled

N_V

0 = V- disabled, 1 = V- enabled

Table 73. MASK2_A axis and sign mask register

P_X

N_X

P_Y

N_Y

P_Z

N_Z

P_V

N_V

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