GS4911B Datasheet, PDF (70/119 Pages) Gennum Corporation – HD/SD/Graphics Clock and Timing Generator with GENLOCK

For example, if VID_STD[5:0] = 3, field 1 will have 263 lines and field 2 will have 262
lines. A user-defined vertical pulse programmed to start on line 12 and stop on line 17
will start on frame lines 12 and 274, and stop on frame lines 17 and 279.
The designated registers for programming each user signal are located in the host
interface beginning at address 57h. See Section 3.12.3 on page 79.
V_Start
V_Stop
V_Start
V_Stop
AND=0, OR=0, XOR=0 (default)
AND=1
V_Start
V_Stop
V_Start
V_Stop
AND=0, OR=1
AND=0, OR=0, XOR=1
Shading indicates when USER_x signal is active
Figure 3-11: USER Programmable Output Signal
GS4911B/GS4910B HD/SD/Graphics Clock and Timing
Generator with GENLOCK
Data Sheet
36655 - 5
June 2009
70 of 119