STV224X_09 Datasheet, PDF (54/86 Pages) STMicroelectronics – I²C bus-controlled multistandard single chip TV processor

STV224X, STV228X, STV223X - I²C BUS SELECTION
Reg.
Addr.
(Hex)
Description
Data
Bits
d7 d6 d5 d4 d3 d2 d1 d0
Comments
1F
1
VERT Output Inhibition
X X X X X 0 X 0 VERT normal operating.
X X X X X 0 X 1 VERT inhibition (forced to high DC level controlled
by vertical position register).
Sound Level Status
Refresh
1 X X X X X 0 0 X 0 = Sound level status continuously refreshed
X X X X X 0 1 X 1 = Sound level status refreshed only at the end of
vertical synchronization pulse
Not to be used
1 XXXXX0XX
Luma Delay Shift
1 X X X X 0 0 X X Standard luma delay.
X X X X 1 0 X X 140 ns on luma delay.
2 X X 0 0 X X X X AVL OFF, read reg 03h, d7 = AGC Tuner Status
X X 0 1 X X X X AVL OFF, read reg 03h, d7 = AGC Tuner Status
AVL Control & Status
X X 1 0 X X X X AVL ON, read reg 03h, d7 = AVL Gain Status
X X 1 1 X X X X AVL ON, read reg 03h, d7 = AGC Tuner Status
) _{reg 04h, d3d2 = 11: AVL Gain Status = 1 (Min.)}
t(s ^{reg 04h, d3d2 ≠ 11: AVL Gain Status = 0 (Max.)}
2 0 0 X X X 0 X X Output of AM/FM demodulator.
c _{0 1 X X X 0 X X Sound subcarriers selected.}
u 1 0 X X X 0 X X Audio output muted.
d AM/FMOUT pin selec-
1 1 X X X 0 X X Main audio switch output, either internal or exter-
ro ^tion
nal audio depending on main audio switch selec-
tion.
P ^{reg 04h; d0 = 0: internal audio.}
reg 04h; d0 = 1: external audio.
lete ^{6.4 OUTPUT SIGNALS (READ MODE)}
o _Reg.
s _Addr.
b _(Hex)
Description
O 00 _{Power-on Reset}
) ^- _{Field Frequency}
t(s Field Lock Status
uc _{Video Identification}
rod ^{Standard Status Crystal}
Selection
bsolete ^{P Standard Selection}
Data
Bits
d7 d6 d5 d4 d3 d2 d1 d0
Comments
1 X X X X X X X 0 Normal mode.
X X X X X X X 1 Power down mode.
1 X X X X X X 0 X 50 Hz.
X X X X X X 1 X 60 Hz.
1 X X X X X 0 X X Not locked.
X X X X X 1 X X Locked.
1 X X X X 0 X X X No identification.
X X X X 1 X X X Video identification.
2 X X 0 0 X X X X XTAL1 (4.43 MHz).
X X 0 1 X X X X XTAL2 (3.5X MHz).
X X 1 0 X X X X XTAL3 (3.5X MHz).
X X 1 1 X X X X XTAL1 (3.5X MHz).
2 0 0 X X X X X X PAL.
0 1 X X X X X X NTSC.
1 0 X X X X X X SECAM.
1 1 X X X X X X COLOR OFF.
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