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March, 2016 − Rev. 1

1 Publication Order Number:

AND9290/D

AR1337 Register & Variable

Reference ON Semiconductor

Imaging

Introduction

This reference document describes the AR1337 registers.

Summary and detailed information are presented in separate

sections:

• “Register Summary” on page 1

• “Register Descriptions” on page 39

How to Access Registers

All the registers can be accessed by the two-wire serial

interface with 16−bit addresses and 16−bit data.

For more detailed information on the interface protocol of

the two−wire serial interface, see the AR1337 data sheet.

Reserved Registers

All the reserved bits should not be changed. The user must

write the original values back when changing the registers.

Bad Frames

A bad frame is a frame where all rows do not have the

same integration time or where offsets to the pixel values

have changed during the frame. Many changes to the sensor

line_length_pck (R0x0342–3) is changed, the new register

value does not affect sensor behavior until the next frame

start. However, the frame that would be read out at that frame

start will have been integrated using the old row width, so

reading it out using the new row width would result in a

frame with an incorrect integration time.

By default, bad frames are not masked. In the register

tables, the “Bad Frame” column shows where changing a

is used:

• N−No. Changing the register value will not produce a

bad frame. Y−Yes . Changing the register value might

produce a bad frame.

• YM−Yes; but the bad frame will be masked out when

mask_corrupted_frames (R0x0105) is set to “1.”

Table 1. SMIA CONFIGURATION

(Hex)

Name

Data Format

(Binary)

Default Value Dec

(Hex)

(R0x0000)

chip_version_reg dddd dddd dddd dddd 595

(0x0253)

(R0x0002)

revision_number ???? ???? 0

(0x00)

(R0x0003)

manufacturer_id ???? ???? 6

(0x06)

(R0x0004)

smia_version ???? ???? 10

(0x0A)

(R0x0005)

frame_count ???? ???? 255

(0xFF)

(R0x0006)

pixel_order 0000 00?? 0

(0x00)

(R0x0008)

data_pedestal 0000 00dd dddd dddd 42

(0x002A)

R64

(R0x0040)

frame_format_model_type ???? ???? 1

(0x01)

R65

(R0x0041)

frame_format_model_subtype ???? ???? 18

(0x12)

R66

(R0x0042)

frame_format_descriptor_0 ???? ???? ???? ???? 20592

(0x5070)

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APPLICATION NOTE