3 - Output Signals (Read-Mode)

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Byte

MSB

LSB

1st

PONRESET

OVERLOAD

VIDID

S120/100

VSTD

TUBECOLD

PHI1MUTE

SYNCVID

2nd

LSB_R_CUT LSB_G_CUT LSB_B_CUT

VERS _NBR

VERS _EXT

3rd

R_CUTOFF_COUNTER

4th

G_CUTOFF_COUNTER

5th

B_CUTOFF_COUNTER

PONRESET

: 1 if voltage drop on V5V (< 4.5V) has been detected (risk of data loss in latch

memory)

OVERLOAD

: 1 if after 3 restart trials TV set is switched off definitely since breathing pin was

pulled down due to an error (reset to 0 can be done by switching off the TV

set (S_ON = 0 ; see Subaddress 0)

VIDID

: 1 if Start-Oscillator PHI1 islocked to HDFL pulse after 7 francs

0 if not

S120/100

: 1 if vertical sync pulse frequency = 120Hz

0 if vertical sync pulse frequency = 100Hz

VSTD

: 1 if line-numbers per frame are interlace standard : exactely 312.5 (100Hz) or

262.5 (120Hz)

0 if line-numbers per frame are different from this standard -> VCR trick mode

recognition

TUBECOLD

: 1 after start of TV set

0 if the first time one of the cut-off counters is decremented ( tube starts to

deliver beam current)

PHI1MUTE

: 1 if PHI1 loop is in mute mode ( no valid HDFL detected ) ; SLPF connected

to a fix voltage

SYNCVID

: 1 if Start oscillator PHI1 is in phase to HDFL pulse

0 if not

VERS_NBR

: Version number

VERS_EXT

: Version extention

LSB_R_CUT

: LSB of 9 bit red cut-off counter

LSB_G_CUT

: LSB of 9 bit green cut-off counter

LSB_B_CUT

: LSB of 9 bit blue cut-off counter

R_CUTOFF_COUNTER : Returns the 8 MSB of the 9 bitred cut-off counter

G_CUTOFF_COUNTER : Returns the 8 MSB of the 9 bit green cut-off counter

B_CUTOFF_COUNTER : Returns the 8 MSB of the 9 bit blue cut-off counter

BUS DESCRIPTION (continued)

STV2162

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