msm7653 ETC-unknow, msm7653 Datasheet - Page 28

• Manufacturer Part Number: msm7653
• Description: Ntsc/pal Digital Video Encoder
• Manufacturer: ETC-unknow

¡ Semiconductor
Setup Level Setting
When the NTSC operation mode is selected, one of the two kinds of setup level can be selected
by setting of registers.
When the setup level 0 is selected, the Black-to-White is 100IRE.
When the setup level 7.5IRE 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
25%, 50%, 75% or 100% luminance order color bar is output by setting internal registers. The
output timings for each color bar color is as follows.
(Ts : sampling block period)
ITU601 NTSC
ITU601 PAL
Operation mode
q
w
Contents of color bar output timing setting
hblank
127Ts
142Ts
e
Output timing of each color bar color
White
r
t
216Ts
230Ts
q
Yellow
y
u
305Ts
318Ts
w
Cyan Green
394Ts
406Ts
e
Magenta
483Ts
494Ts
r
Red
572Ts
582Ts
t
Blue
661Ts
670Ts
y
Black
750Ts
757Ts
u
MSM7653
858Ts
864Ts
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