STV6412A

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Table 20. Standby Modes

Table 21. Output Signals (Read Mode)

Note 5: The Interrupt Flag will be cleared when this register is read. To prepare for a new interrupt, a “1” must be re-written in the IT Enable

bit (Reg. 04, d7).

3.2 Power-on Reset — Bus Register Initial Conditions

Power-on Reset is active when the supply V

Non-significant bits (X) are pre-set to “0”.

Reg.

Addr

(Hex)

Description

Bits

Data

Comments

d7

d6

d5

d4

d3

d2

d1

d0

06

ENC Inputs

1X

X

X

X

X

X

X

X

X

X

X

X

X

X

0

1

Inputs active

Inputs disabled

VCR Inputs

1X

X

X

X

X

X

X

X

X

X

X

X

0

1

X

X

Inputs active

Inputs disabled

TV Inputs

1X

X

X

X

X

X

X

X

X

X

0

1

X

X

X

X

Inputs active

Inputs disabled

AUX Inputs

1X

X

X

X

X

X

X

X

0

1

X

X

X

X

X

X

Inputs active

Inputs disabled

VCR Outputs

1X

X

X

X

X

X

0

1

X

X

X

X

X

X

X

X

Audio & Video Outputs ON

Audio & Video Outputs OFF

CINCH Outputs

1X

X

X

X

0

1

X

X

X

X

X

X

X

X

X

X

Audio & Video Outputs ON

Audio & Video Outputs OFF

TV Outputs

1X

X

0

1

X

X

X

X

X

X

X

X

X

X

X

X

Audio & Video Outputs ON

Audio & Video Outputs OFF

RFmod Outputs

10

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Audio & Video Outputs ON

Audio & Video Outputs OFF

Full Stop

1

1

1

1

1

1

1

1

detection parts are supplied.

Reg.

Addr

(Hex)

Description

Bits

Data

Comments

d7

d6

d5

d4

d3

d2

d1

d0

Slow Blanking TV SCART

2X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

0

1

1

1

0

1

Input <2 V

Input 16/9 format

Input 4/3 format

Slow Blanking VCR SCART

2X

X

X

X

X

X

X

X

X

X

X

X

0

1

1

1

0

1

X

X

X

X

X

X

Input <2 V

Input 16/9 format

Input 4/3 format

Interrupt Flag

1X

X

X

X

X

X

0

1

X

X

X

X

X

X

X

X

No change since read

One change has been detected

Reg.

Addr

(Hex)

Data

Comments

d7

d6

d5

d4

d3

d2

d1

d0

00

000

00000

Audio TV and Cinch outputs are in Stereo Mode, 0 dB Gain Adjustment.

01

000

00000

TV, Cinch and VCR audio outputs are muted. VCR output is in Stereo

Mode.

02

000

00000

VCR, TV and RFmod video outputs are muted.

03

000

00000

Fast Blanking is forced to ‘0’. RGB outputs are muted and in high imped-

ance.

04

000

00000

C_GATE is high. C_VCR is high impedance.