VG6640 datasheet(42/126 Pages) STMICROELECTRONICS

42 / 126 page

Control interface

VG6640, VD6640

42/126

DocID023597 Rev 11

4.2.7

User interface set 0 registers [0x2124 to 0x2286]

Two user interface register sets are provided to allow frame-by-frame context switching of

exposure, frame length, HDR merge, defect correction, PWL compression parameters and

statistics accumulation. While one frame is being streamed using the active context settings,

new settings may be programmed to the non-active context, ready for use by the next

frame.

These settings must be written with the grouped_parameter_hold flag set. The status of the

integration and gain registers is reported in the frame status line.

Table 12. User interface set 0 Video timing registers [0x2124 to 0x2132]

Index

Byte

Data

type

Default

Type

Comment

0x2124

TokenId

8UI

0x01

Token ID used for identification of

this UI Set

0x2125 HI

CoarseTimeLong

16UI

0x03

Coarse integration time for long pipe

(lines)

Min = 0 lines

Max = framelength_lines - 115

0x2126 LO

0x5D

0x2127 HI

CoarseTimeMedium

16UI

0x00

Coarse integration time for medium

pipe (lines)

Min = 0 lines

Max = 96

0x2128 LO

0x35

0x2129 HI

CourseTimeShort

16UI

0x00

Coarse integration time for short pipe

(lines)

Min = 0 lines

Max = 13

0x212A LO

0x03

0x212B

AnalogGain

0x00

Global analog gain (coded)

0x00 = Gain x1.0 (+0dB)

0x01 = Gain x1.07 (+0.6dB)

0x02 = Gain x1.1 (+1.2dB)

0x03 = Gain x1.2 (+1.8dB)

0x04 = Gain x1.3 (+2.5dB)

0x05 = Gain x1.5 (+3.3dB)

0x06 = Gain x1.6 (+4.1dB)

0x07 = Gain x1.8 (+5.0dB)

0x08 = Gain x2.0 (+6.0dB)

0x09 = Gain x2.3 (+7.2dB)

0x0A = Gain x2.7 (+8.5dB)

0x0B = Gain x3.2 (+10.1dB)

0x0C = Gain x4.0 (+12.0dB)

0x0D = Gain x5.3 (+14.5dB)

0x0E = Gain x8.0 (+18.0dB)

0x0F = Gain x16.0 (+24.0dB)

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