SOFTWARE SPECIFICATION

I

92 HEXA

DATA BYTE

B7

B6

B5

B4

B3

B2

B1

B0

XX0

0

0

0

0

0

1

1

1

1

0

0

1

1

0

0

1

1

0

1

0

1

0

1

0

1

SWIT CH 1

POSITION 1 VIDEO IN 1

POSITION 2 VIDEO IN 2

POSITION 3 VIDEO IN 3

POSITION 4 VIDEO IN 4

POSITION 5 VIDEO IN 5

POSITION 6 MUTE

NOT ALLOWED

NOT ALLOWED

XX0

1

X

X

X

X

0

0

1

1

0

1

0

1

SWIT CH 2

POSITION 1 VIDEO IN 3

POSITION 2 VIDEO IN 4

POSITION 3 VIDEO IN 5

NOT ALLOWED

XX1

0

X

X

X

X

0

0

1

1

0

1

0

1

SWIT CH 2

POSITION 1 VIDEO IN 1

POSITION 2 VIDEO IN 2

POSITION 3 VIDEO IN 4

POSITION 4 VIDEO IN 5

XX1

1

X

X

1/0

X

1/0

X

1/0

X

X

DIGITAL BUFFER

DIG BUFFER 1

DIG BUFFER 2

DIG BUFFER 3

Remark : The letter ”X” means dont’t care.

Example : XX00X100 means.

The switch 1 is connected to Video input 5

Example : XX11X011 means.

Digital buffer 1 is at high level

Digital buffer 2 is at high level

Digital buffer 3 is at low level

The starting condition upon power-on is undetermined.

In this case 4 words of 16 bits are necessary to fix the device configuration.

In other case only one word of 16 bits is necessary to modify one configuration of the device.

STV6400

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