STV0974 datasheet(43/69 Pages) STMICROELECTRONICS

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Functional description

STV0974

43/61

Table 28: Image characteristics [Register group 1]

Name

Index

R/W

State

code

Data

type

Format

default

Description

Still and Live

Sensor Frame

Ratea

0xA100

R/W

S I V

DDDD.DDDD

0011.1100

Frame rate coded as fixpoint (6:2):

Bit [7:2]: Integer part

Bit [1:0]: Decimal part

(1 unit = 0.25 frame/s)

Default is 15 frame/s

Still and Live

Output Image Size

0xA101

R/W

RRRR.RDDD

0000.0000

[7]: Custom b

[6]: QQCIF

[5]: SubQCIF

[4]: QQVGA

[3]: QCIF

[2]: QVGA

[1]: CIF

[0]: VGA

Still and Live

Output Image

Format

0xA102

R/W

S I V

RRRR.RDDD

0000.0100

[4]: JPEG

[3]: YUV 4:2:2

[2]: RGB 5:6:5

[1]: RGB 4:4:4

[0]: RGB 3:3:2

Still Multi-frames

Transfer Mode

0xA103

R/W

S I V L

DDDD.DDDD

0000.0001

0... 254: 0...254 frame(s)

255: continuous.

Delay transfer

Mode

0xA104

R/W

S I

DDDD.DDDD

0000.0000

0... 254: Minimum number of

frames (at 30 frame/s) to wait for

before sending the requested still

one.

255: Reserved

Viewfinder Frame

Rate

(STV0974 input)a

0xA105

R/W

S I L C

DDDD.DDDD

0011.1100

Frame rate coded as fix point

(6:2)a:

bit [7:2]: Integer part

bit [1:0]: Decimal part

(1 unit = 0.25 frame/s)

Default is 15 frame/s

Viewfinder Image

Size

0xA106

R/W

RRRR.RDDD

0000.0101

[7]: Customb

[6]: QQCIF

[5]: SubQCIF

[4]: QQVGA

[3]: QCIF

[2]: QVGA

[1]: CIF

[0]: VGA

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