STV2246H STMicroelectronics, STV2246H Datasheet - Page 54

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

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