UG-707
ADV8005 Hardware Reference Manual
a
Total number of lines in field 0. Unit is in half lines.
b
Actives number of lines in field 0. Unit is in lines.
c
VSync front porch width in field 0. Unit is in half lines.
d
VSync pulse width in field 0. Unit is in half lines.
e
VSync back porch width in field 0. Unit is in half lines.
Figure 94: Vertical Parameters for Field 0
Note
: Field 1 measurements should not be used for progressive video modes.
5.9.
INFOFRAME REGISTERS
In HDMI, the auxiliary data is carried across the digital link using a series of packets. The
Serial Video Rx can automatically detect
and store the following HDMI packets:
•
InfoFrames
•
Audio content protection
•
International Standard Recording Code (ISRC)
•
Gamut metadata
Section
explains the method through which the
can extract and store these InfoFrames.
5.9.1.
InfoFrame Collection Mode
The
has two modes for storing the InfoFrame packets sent from the source into the internal memory. By default, the
stores the InfoFrame packets received if the checksum is correct for each InfoFrame.
The
also provides a mode to store every InfoFrame sent from the source, regardless of an InfoFrame packet checksum error. This can
to 1.
always_store_inf
, HDMI RX Map,
Address 0xE247[0]
This bit is used to force InfoFrames with checksum errors to be stored.
Function
always_store_inf
Description
0 (default)
Stores data from received InfoFrames only if their checksum is correct
1
Always store the data from received InfoFrame regardless of their checksum
5.9.2.
InfoFrame Checksum Error Flags
To determine if a checksum error has occurred with the InfoFrame packets, the user can poll the various status bits in the IO Map. There are
several interrupt flags in the IO Map which indicate the status of the various InfoFrames. Refer to Section
for more details on the Serial
Video Rx interrupts.
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Data
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HSYNC
VSYNC
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b
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