STV0974 datasheet(41/69 Pages) STMICROELECTRONICS

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Functional description

STV0974

41/61

4.9.3.1 High-level interface

Table 27: System and status [register group 0]

Name

Index

R/W

State

code

Data

type

Format

default

Description

Sensor ID Code

MSB

0xA000

DDDD.DDDD

0010.0010

Bit[15:4]: sensor type

Bit [3:0]: Sensor revision

Sensor ID Code

LSB

0xA001

DDDD.DDDD

1000.XXXX

Firmware Rom

Version

0xA002

DDDD.DDDD

0001.0100

Firmware version identifier

External Clock

Frequency MSBa

0xA004

R/W

RRDD.DDDD

1101.0000

External clock frequency in MHz

coded as fixed point (5:11):

Bit [15:11]: Integer part

Bit [10:0]: Decimal part (1 unit = 1/

2048 MHz)

i.e. default value is 26MHz.

External Clock

Frequency LSB

0xA005

R/W

RRDD.DDDD

0000.0000

Sensor Clock

Derating

0xA006

RRRR.DDDD

0000.0001

Sensor clock deratingb

[15-0]: Reserved

Mode Status

0xA007

RRRR.DDDD

[15]: Booting

[14-7]: Reserved

[6]: Flash

[5]: Capture in progress

[4]: Live

[3]: Capture

[2]: Viewfinder

[1]: Idle

[0]: Sleep

Mode Control

0xA008

R/W

RRRR.DDDD

0000.0000

[15-7]: Reserved

[6]: Flash

[5]: Reserved

[4]: Live

[3]: Capture

[2]: Viewfinder

[1]: Idle

[0]: Sleep

Status Register

0xA009

DDDD.DDDD

0000.0000

STV0974 status (

Table 10)

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