VD5377 datasheet(75/88 Pages) STMICROELECTRONICS

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Doc ID 022952 Rev 2

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VD5377

I2C register map

OVERFLOW

x_overflow

This register records if the X-

motion integrator has reached

its limit.

0 = No overflow

1 = Overflow

y_overflow

This register records if the Y-

motion integrator has reached

its limit.

0 = No overflow

1 = Overflow

Reserved

no_motion

This bit is asserted as long as

both X/Y integrators are empty

(logical or between motion_w

and motion_y).

0 = Motion

1 = No motion

motion_acc_flush_en

PRWC

If set this bit flushes the motion

accumulators (self cleared).

adapt_cpi_en

If set the CPI is function of the

detected motion

0 = No adaptive CPI

1 = Enable adaptive CPI

Reserved

PRW

Reserved

PARAMETERS_2

invert_x

PRW

Allows X to be inverted

invert_y

PRW

Allows Y to be inverted

Reserved

PRW

Reserved

swap_xy

PRW

Replaces X with Y and Y with X.

test_pattern_en

PRW

Test pattern enable

0 = normal vector from motion

detector

1 = diamond shape vector test

pattern

test_pattern_speed

7:6

PRW

Test pattern enable

0 = |motion| = 127 maximum

speed

1 = |motion| = 64

2 = |motion| = 32

3 = |motion| = 16

Table 38. I2C register map (continued)

Addr

(Hex)

SIgnal name

Bit

Type

Default

(Hex)

Comment

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