TDA4821P Ver la hoja de datos (PDF) - Philips Electronics
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TDA4821P Datasheet PDF : 20 Pages
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Philips Semiconductors
Autosize IC for colour monitors
Product specification
TDA4821P
Table 4 I2C-bus registers and their contents
SUBADDRESS REGISTER
HEX
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
20
NAME
VsWidth (MSB)
VsWidth (LSB)
VfstVid (MSB)
VfstVid (LSB)
VlstVid (MSB)
VlstVid (LSB)
Vperiod (MSB)
Vperiod (LSB)
HsWidth (MSB)
HsWidth (LSB)
HfstVid (MSB)
HfstVid (LSB)
HlstVid (MSB)
HlstVid (LSB)
Hperiod (MSB)
Hperiod (LSB)
Hfbstrt (MSB)
Hfbstrt (LSB)
Hfbstop (MSB)
Hfbstop (LSB)
Sync polarities
Mclk
FUNCTION
V-sync width
V-sync width
start video after V-sync
start video after V-sync
stop video after V-sync
stop video after V-sync
V-sync cycle time
V-sync cycle time
H-sync width
H-sync width
start video after H-sync
start video after H-sync
stop video after H-sync
stop video after V-sync
H-sync cycle time
H-sync cycle time
start flyback after H-sync
start flyback after H-sync
stop flyback after H-sync
stop flyback after H-sync
sync polarities
clock multiplier
MSB
LSB
R/W
D7 D6 D5 D4 D3 D2 D1 D0
R b15 b14 b13 b12 b11 b10 b9 b8
R0 0000000
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R0 0000000
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R b15 b14 b13 b12 b11 b10 b9 b8
R b7 b6 b5 b4 0 0 0 0
R 0 0 0 0 0 0 Hpol Vpol
W 0 0 0 0 0 b2 b1 b0
Table 5 Description of the clock multiplier
REGISTER Mclk
b2
b1
b0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
CLOCK MULTIPLICATION FACTOR
1
2 (default after power-on)
3
4
5
6
7
8
2000 Feb 09
10
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