ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 468

• Manufacturer Part Number: ALXD800EEXJ2VD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VD

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

6.9.8
BT.601 mode allows reception of 8- or 16-bit video input
which consists of HSYNC, VSYNC, and 8/16 bit data. Verti-
cal and horizontal start/stop registers provide the informa-
tion for data capture in each field/frame. The BT.656 SAV/
EAV codes (if present) are ignored. Frame/line timing is
derived from the HSYNC and VSYNC inputs only. Odd/
even field is determined by the leading edges of VSYNC
and HSYNC. Default field detection is shown in Figure 6-
45. A detection window is programmable using the VIP
Memory Offset 50h. If the leading edge of VSYNC occurs
468
BT.601 Mode
Odd field is indicated when leading edge of VSYNC and the leading edge of HSYNC occur simultaneously
(VIP allows for a programmable detection window for odd field).
Even field is indicated when leading edge of VSYNC occurs prior to the leading edge of HSYNC.
(for even field)
(for even field)
ACTIVE HIGH HSYNC/VSYNC (HSYNC polarity = 1 / VSYNC polarity = 1)
(for odd field)
(for odd field)
ACTIVE LOW HSYNC/VSYNC (HSYNC polarity = 0 / VSYNC polarity = 0)
HSYNC
HSYNC
33234C
VSYNC
VSYNC
VSYNC
VSYNC
Figure 6-45. BT.601 Mode Default Field Detection
odd field
odd field
even field
even field
even field
even field
odd field
line #1
odd field
line #1
within the window, the field is odd. If the leading edge of
VSYNC occurs outside the window, the field is even. The
VIP Memory Offset 50h default value requires that the
HSYNC and VSYNC leading edges occur simultaneously
for odd field detection (see Figure 6-46 on page 469). The
horizontal and vertical input timings of the input video
frame are also programmable. See Figure 6-47 and Figure
6-48.
(line #1)
(line #1)
(line #1)
(line #1)
odd field (line #2)
even field (line #2)
AMD Geode™ LX Processors Data Book
odd field (line #2)
even field (line #2)
Video Input Port