Samsung S3C6400X User Manual page 511

TV ENCODER
For burst start&
H-sync duration
0 IRE
H-sync 50%
-20 IRE
amplitude
level
-40 IRE
Figure 17-11. Horizontal Timing Diagram for color stripe (macrovision control)
Pseudo sync and AGC pulse control register
Register
N8[5:3] Pseudo sync duration in format A
N8[2:0] Pseudo sync duration in format B
N9[5:3] First pseudo sync pulse location in format A
N9[2:0] First pseudo sync pulse location in format B
N10[5:3] Pseudo sync pulse spacing in format A
N10[2:0] Pseudo sync pulse spacing in format B
N11[14:0] P.S AGC on/off ( each bit ) (21~7) (284~270 / 333-319)
N12[14:0] Format selection( each bit) (21~7) (284~270 / 333~319)
N13[7:0] On/Off control of format A
N14[7:0] On/Off control of Format B
N15[7:4] The number of back porch pulse before Vertical sync asserts
N15[3:0] The number of back porch pulse after Vertical sync de-asserts
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
17-12
Specifications and information herein are subject to change without notice.
For burst
parameters
(except burst start)
Colorsrtipe line
burst start
4.96us 0.15us ±
H-sync duration
(4.74us max)
Non-colorstripe line
burst start
(norminal 5.5 us)
Table 17-1 Registers table of pseudo sync and AGC pulse
Description
Start of burst to
1'st to 2'nd phase
1'st phase
switch point
switch point
(N18)
(N17)
Phase of each
burst zone set
by N20, N21
Standard burst duration on
non-colorstripe line
N20 : define property of zone
N21: stype of modified zone
@3.58MHz
±
(0.56us 0.07us)
S3C6400X RISC MICROPROCESSOR
2'nd phase
switch point to
end of burst
(N19)
Burst
amplitude
±
9 cycles 1 cycle
±
(2.51us 0.28us)
'0' normal / '1' modify
Note
2(12 + reg) / 13.5M [525]
2(8 + reg) / 13.5M [625]
8(12 + reg) / 13.5M
8(11 + reg) / 13.5M [525]
8(7 + reg) / 13.5M [625]
On = 1
Format A = 0
On = 1
On = 1