STV2050A STMicroelectronics, STV2050A Datasheet - Page 36

• Manufacturer Part Number: STV2050A
• Description: IC DGTL CONVERGENCE PROC 80-PQFP
• Manufacturer: STMicroelectronics
• Type: Videor

Specifications of STV2050A

• Applications: HDTV
• Mounting Type: Surface Mount
• Package / Case: 80-MQFP, 80-PQFP
• Case: QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STV2050A - VIDEO PATTERN GENERATOR
Figure 18. Vertical Grid Adjustment
If the VGP bit is programmed to 0, the grid starts with the first line following the two lines that
are reserved for the register update procedure.
The allowed range for the VGP is included between the 0 and 511 video lines.
7.3 CURSOR
7.3.1 Cursor Size
The cursor is available in different shapes. The shape is selected by the PAS[3] cursor-type bit
in the EA register.
7.3.2 Cursor Position
The position of the cursor is determined by the most recent write command on the I²C bus.
The embedded RAM addresses of dynamic convergence correction values correspond di-
rectly to grid positions on the screen. They represent cursor positions as well.
If the CPV (Cursor Position Vertical) value exceeds the 0...C(hex) range, the cursor is not dis-
played.
If a new write address is within the accepted grid range (after having exceeded the range), the
cursor pattern is re-displayed (unless the cursor display is turned off).
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PAS[3]
0: Small Cursor
1: Large Cursor
VGD
VGP+2
12
0
1
2
3
4
5
6
V-Retrace
screen
visible
area