VPC3243D datasheet(24/78 Pages) MICRONAS

24 / 78 page

VPC 323xD, VPC 324xD

ADVANCE INFORMATION

Micronas

2.12. Picture in Picture (PIP) Processing and

Control

2.12.1. Configurations

To support PIP and/or scan rate conversion (SRC)

applications, the VPC32xxD provides several control

signals for an external field memory IC.

Fig. 2–21 demonstrates two applications with a single

VPC 32xxD. In these cases the VPCsingle writes the

main picture or one of several inset picture(s) into the

field memory. Only one of these pictures is displayed

live. These configurations are suitable for features

such as turner scan, still picture, still in picture and

simple scan rate conversion.

Fig. 2–22 shows an enhanced configuration with two

VPC 32xxD’s. In this case, one live and several still

pictures are inserted into the main live video signal.

The VPCpip processes the inset picture and writes the

original or decimated picture into the field memory.

The VPCmain delivers the main picture, combines it

with the inset picture(s) from the field memory and

stores the combined video signal into a second field

memory for the SRC.

Fig. 2–21: Typical configurations with single VPC 32xxD

Fig. 2–22: Enhanced configuration with two VPC 32xxD

VPC

32XXD

(single)

field

memory

DDP

3310B

YCrCb/RGB

CVBS

YCrCb

LLC1,

RSTWR,

WE, IE

YCrCb

RGB

H/V

Def.

LLC2,

FIFORRD,

FIFORD

VPC

32XXD

(single)

YCrCb/RGB

CVBS

YCrCb

LLC1,

RSTWR,

WE, IE

YCrCb

field

memory

LLC1,

RSTWR,

VPC

32XXD

(pip)

VPC

32XXD

(main)

field

memory

(for PIP)

field

memory

(for SRC)

DDP

3310B

YCrCb/RGB

CVBS

YCrCb/RGB

CVBS

(for main picture)

(for PIP)

YCrCb

LLC1,

RSTWR,

WE, IE

YCrCb

LLC1,

RSTWR,

RE, OE

LLC1,

RSTWR,

WE, IE

RGB

H/V

Def.

LLC2,

FIFORRD,

FIFORD

YCrCb

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