Specifications

Hardware description
Parameters:
Mode: Video mode expression, see below.
ClockRate: Clock rate of the clock domain of the call to this macro, in Hz.
Timing:
Does not terminate in normal use.
Description:
Drives the video output in the selected mode. You must run this macro in parallel
with accesses to the device.
Mode must be one of the expressions listed below.
The VGA modes drive the VGA connector with VESA GTF compatible timings. The
horizontal resolution will adapt according to
ClockRate. To achieve standard
resolutions, set the clock frequency to the appropriate value for the resolution, as
shown in the table below.
To use the LCD panel, the clock frequency must be exactly 25.175 MHz. When
using the LCD the VGA connector is also driven, providing a dual display capability
(although the image will be the same on both displays).
Mode expression Video mode
RC200VGAOutMode480at60
480 lines at 60Hz refresh
RC200VGAOutMode480at75
480 lines at 75Hz refresh
RC200VGAOutMode600at60
600 lines at 60Hz refresh
RC200VGAOutMode600at72
600 lines at 72Hz refresh
RC200VGAOutMode768at60
768 lines at 60Hz refresh
RC200VGAOutMode768at76
768 lines at 76Hz refresh
RC200VGAOutMode864at72
864 lines at 72Hz refresh
RC200VGAOutMode1024at75
1024 lines at 75Hz refresh
RC200LCDOutMode480at60
480 lines at 60Hz refresh on LCD
RC200TVOutModePAL
PAL TV (625 lines interlaced @ 50Hz)
RC200TVOutModeNTSC
NTSC TV (525 lines interlaced @ 60Hz)
Resolution Clock frequency
640 x 480 @ 60Hz 25.175000 MHz
640 x 480 @ 75Hz 31.500000 MHz
800 x 600 @ 60Hz 40.000000 MHz
800 x 600 @ 72Hz 50.000000 MHz
1024 x 768 @ 60Hz 65.000000 MHz
1024 x 768 @ 76Hz 85.000000 MHz
1152 x 864 @ 72Hz 100.000000 MHz
1280 x 1024 @ 75Hz 140.000000 MHz
720 x 576i @ 50Hz 13.846154 MHz
720 x 480i @ 60Hz 13.846154 MHz
5.11.2 Enabling video output
extern macro proc RC200VideoOutEnable ();
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