msm7654 Oki Semiconductor, msm7654 Datasheet - Page 39

• Manufacturer Part Number: msm7654
• Description: Ntsc/pal Digital Video Encoder
• Manufacturer: Oki Semiconductor

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SETUP LEVEL SETTING
When the NTSC operation mode is selected, one of the two kinds of setup level can be selected
by setting of internal register (MR1[7]).
When the setup level 0IRE (MR1[7] = "0") is selected, the Black-to-White is 100IRE.
When the setup level 7.5IRE (MR1[7] = "1") is selected, the Black-to-White is 92.5IRE.
However, this setup function is valid only for the NTSC mode and invalid for the PAL mode.
COLOR BAR GENERATION FUNCTION
The 25% luminance order color bar or 50% luminance order color bar or 75% luminance order
color bar or 100% luminance order color bar is output by setting internal register CR0[2:1]. The
output timings for each color bar color are as follows.
ITU-R BT.601 NTSC
ITU-R BT.601 PAL
4Fsc NTSC
Square pixel NTSC
Square pixel PAL
CLKX1
Operation mode
: sampling clock period)
q
w
Contents of color bar output timing setting
127T
142T
135T
116T
155T
hblank
e
Output timing of each color bar color
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
White
r
216T
230T
230T
197T
251T
t
q
Yellow
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
y
u
305T
318T
325T
278T
347T
w
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
Cyan Green
394T
406T
419T
359T
443T
e
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
483T
494T
513T
440T
539T
Magenta
r
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
572T
582T
607T
521T
635T
Red
t
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
661T
670T
701T
602T
731T
Blue
y
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
Black
750T
757T
795T
682T
827T
u
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1
MSM7654
858T
864T
910T
780T
944T
39
1H
CLKX1
CLKX1
CLKX1
CLKX1
CLKX1