VGA Video Display Generation using FPGAs - Rapid Prototyping of Digital Systems - page 194

640 Pixels in a row

639,0

0,0

480
Pixels
in a
column

480 Horizontal Scan Lines and Retrace

.
.
.

0,479

639,479

Figure 10.2 VGA Image - 640 by 480 Pixel Layout .

480 Horizontal Refresh Cycles

Red, Green,

Blue
Pixel Data

1.02 ms 15.24 ms 0.35 ms

Vertical
Sync

64 s

16.6 ms

Figure 10.3 Vertical Sync Signal Timing for 640 by 480 at 60Hz.

Red, Green,
Blue
Pixel Data

1.89 s 25.17 s 0.94 s

Horizontal
Sync

3.77s

31.77 s

Figure 10.4 Horizontal Sync Signal Timing for 640 by 480 at 60Hz.