
Genesis Microchip
gm5060 / gm5060-H Data Sheet
February 2002 
C5060-DAT-01G
51 
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The gm5060 has three available bypass capabilities in addition to the standard data flow: 
1) Capture-only Mode: In this mode, captured input signals and data are transferred, with a 
nominal register latency, directly to the display output port.  No image processing of any type 
is performed and the display clock is identical to the input clock.  The output port is 
automatically configured for single-pixel data width in this configuration. 
Image
Capture
YUV
RealColor
TM
Controls
RGB
Color
Controls
Frame Rate
Conversion
Zoom/
Shrink
Scaling
Triple
ADC
TMDS
Rx
ITU656
Decoder
Gamma
Correction
LUT
HDCP
Image
Measurement
Display
Timing &
Control
OSD
Frame
Store
Interface
Micro-
processor
(MCU)
Host
Interface
SDRAM
Interface
Analog
RGB
Digital
DVI
Digital YUV
Video
(8-bits)
Serial
Interface
.
Clock
Recovery
Input
Color
LUT
Display
Clock
Generation
Panel
Interface
(24-bits)
Figure 42. Capture Only Mode 
2) FRC Bypass Mode: In this mode, the IC operates without external SDRAM memory.  The 
resultant display vertical sync frequency becomes identical to the input vertical sync 
frequency (no frame rate conversion). This is the standard operating mode for mid-range 
SXGA monitors without frame store memory.  
Note: Although the external FSCLK pin will not show any activity, the Frame Store Clock 
must still be active and operating to clock circuitry within the gm5060. 
Image
Capture
YUV
RealColor
TM
Controls
RGB
Color
Controls
Frame Rate
Conversion
Zoom/
Shrink
Scaling
Triple
ADC
TMDS
Rx
ITU656
Decoder
Gamma
Correction
LUT
HDCP
Image
Measurement
Display
Timing &
Control
OSD
Frame
Store
Interface
Micro-
processor
(MCU)
Host
Interface
SDRAM
Interface
Analog
RGB
Digital
DVI
Digital YUV
Video
(8-bits)
Serial
Interface
Panel
Interface
.
Clock
Recovery
Input
Color
LUT
(24/48-bits)
Display
Clock
Generation
Figure 43. FRC Bypass Mode