SAA7154E/V2/G,518 NXP Semiconductors, SAA7154E/V2/G,518 Datasheet - Page 31

• Manufacturer Part Number: SAA7154E/V2/G,518
• Manufacturer: NXP Semiconductors

Specifications of SAA7154E/V2/G,518

• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LBGA
• Pin Count: 156
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
SAA7154E_SAA7154H_2
Product data sheet
7.11 Clock generation
The exception to the above is the VBI interrupt bit whose status is frozen when a VBI
event occurs. It is set only if its mask bit is set and an end of VBI event occurs. An
additional interrupt lost signal is available for software to check whether all VBI data has
been read. It is asserted if the VBI interrupt bit is still set when the next end of VBI event
occurs.
Remark: if a new interrupt condition occurs at the same time (at clock enable) as a status
is being read, the flag will not be cleared.
Table 7.
A first Clock Generation Circuit (CGC) receives a synthesized reference signal which is
line-locked to the active incoming analog video. It acts like an analog tracking filter in order
to remove residual jitter from the sampling clock.
In a similar way, a second clock generator is capable to output video data in square pixel
formats:
Status
RDCAP
COPRO
COLSTR
TYPE3
FIDT
HLVLN
INTL
DCSTD[1:0] detected color standard (SDTV)
HLCK
NFLD
ERROF
VBI_IRQ
PRDON
HD_COPRO copy protected HDTV source detected according to
HD_RDCAP ready for capture (all internal loops locked) (HDTV)
HD_HL
•
•
PAL video line is output with 768 active video pixel at 29.5 MHz square pixel clock
frequency
NTSC Video line is output with 640 active video pixel at 24.54 MHz square pixel
clock frequency.
List of status signals for which an interrupt can be initiated
Description
ready for capture (all internal loops locked) for SDTV
signals
copy protected source detected according to
Macrovision version up to 7.01 (SDTV)
Macrovision encoded color stripe burst detected
(any type)
Macrovision encoded color stripe burst type 3 (4 line
version) detected (SDTV)
identification bit for detected field frequency (SDTV)
status bit for horizontal and vertical loop (SDTV)
status bit for interlace detection (SDTV)
status bit for locked horizontal frequency (SDTV)
status bit for field length (SDTV)
error output formatter scaler
end of VBI region interrupt (no status, this bit will
only be set if the corresponding mask bit is set and
the event occurs)
power-down status signal
Macrovision version up to 7.01
horizontal lock flag (HDTV)
Rev. 02 — 6 December 2007
SAA7154E; SAA7154H
Multistandard video decoder with comb filter
Address
42h/40h - 1Fh both edges
42h/40h - 1Fh both edges
42h/40h - 1Fh both edges
42h/40h - 1Fh both edges
42h/40h - 1Fh both edges
42h/40h - 1Fh both edges
42h/40h - 1Fh both edges
42h/40h - 1Eh both edges
42h/40h - 1Eh both edges
42h/40h - 1Eh both edges
42h/40h - 8Fh rising edge
42h/40h - 8Fh falling edge
42h/40h - 8Fh falling edge
4Ah/48h - 1Fh both edges
4Ah/48h - 1Fh both edges
4Ah/48h - 1Fh both edges
© NXP B.V. 2007. All rights reserved.
Active edge
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