FS401LF ETC2 [List of Unclassifed Manufacturers], FS401LF Datasheet - Page 82

• Manufacturer Part Number: FS401LF
• Description: PC to TV Video Scan Converters
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

FS401, FS403
PRODUCT SPECIFICATION
REV. NO. 1.7
Input Vertical Offset, IVO is a twelve bit value that sets the vertical displacement of the captured active
video relative to the vertical sync as show in Figure 12.
Figure 12. Input Offset and Size Definitions
Input Horizontal Active Width, IHAW is the 10-bit terminal count of the number of horizontal pixels to be
inserted into frame store memory. (see Figure 12)
Input Vertical Active Height, IVAH is the 11-bit terminal count of the number of vertical pixels to be
inserted into frame store memory, which is equal to 2*ILS. (see Figure 12)
5.2.4 Output Offset and Size Control
Synchronization and timing of outgoing video pixel data is predetermined by the selection of the video
format. However, the location of the active video area must be selected by programming the offset
registers. Leading edges of outgoing horizontal and vertical sync define the dimensions of the outgoing
frame as shown in Figure 13. Offsets OVO and OHO define the position of the active video area within
the outgoing frame.
Output Horizontal Offset, OHO is the 11-bit terminal count of the horizontal displacement of the outgoing
active video in pixels relative to the leading edge of horizontal sync. (see Figure 13)
Output Vertical Offset, OVO is the 10-bit terminal count of the vertical displacement of the outgoing active
video in pixels relative to the beginning of vertical sync equalization pulses. (see Figure 13)
Figure 13. Output Horizontal and Vertical Offset Definitions
5.2.5 Freeze Frame
Setting the FREEZE bit of the Command Register can interrupt writing to the Frame Store. Capture will
continue until the end of the current frame.
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COPYRIGHT © 1999 FOCUS ENHANCEMENTS, INC.
JANUARY 24, 2007