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9

Registers

The SDNS-3988 registers are accessible via the serial port. The registers are used to read motion data and status as well as to set the

device configuration.

Address

Register

Read/Write

Default Value

0x00

Product_ID

R

0x3d

0x01

Revision_ID

R

0x01

0x02

Motion

R

0x20

0x03

Delta_X_L

R

0x00

0x04

Delta_X_H

R

0x00

0x05

Delta_Y_L

R

0x00

0x06

Delta_Y_H

R

0x00

0x07

SQUAL

R

0x00

0x08

Pixel_Sum

R

0x00

0x09

Maximum_Pixel

R

0x00

0x0a

Minimum_Pixel

R

0x00

0x0b

Shutter_Lower

R

0x7a

0x0c

Shutter_Upper

R

0x31

0x0d

Frame_Period_Lower

R

0x1a

0x0e

Frame_Period_Upper

R

0x41

0x0f

Configuration_I

R/W

0x24

0x10

Configuration_II

R/W

0x00

0x11

Configuration_III

R/W

0x00

0x12

Frame_Capture

R/W

0x00

0x13

SROM_Enable

W

0x00

0x14

Run_Downshift

R/W

0x32

0x15

Rest1_Rate

R/W

0x01

0x16

Rest1_Downshift

R/W

0x1f

0x17

Rest2_Rate

R/W

0x09

0x18

Rest2_Downshift

R/W

0xbc

0x19

Rest3_Rate

R/W

0x31

0x1a

Frame_Period_Max_Bound_Lower

R/W

0x1a

0x1b

Frame_Period_Max_Bound_Upper

R/W

0x41

0x1c

Frame_Period_Min_Bound_Lower

R/W

0xa0

0x1d

Frame_Period_Min_Bound_Upper

R/W

0x0f

0x1e

Shutter_Max_Bound_Lower

R

0x7a

0x1f

Shutter_Max_Bound_Upper

R

0x31

0x24

Observation

R/W

0x00

0x25

Data_Out_Lower

R

Undefined

0x26

Data_Out_Upper

R

Undefined

0x27-0x29

Reserved

0x2a

SROM_ID

R

0x00

0x2b-0x2e

Reserved

0x2f

Configuration_V

R/W

0x00