Detailed hardware description
Issue D
43
Display interfaces
The GEMINI board supports a range of display interfaces. Details of these are provided
in the following sections:
Analogue RGB
A standard progressive scan analogue CRT interface is provided from the GMCH. This is
interfaced to a high density DB15 VGA connector mounted on the board. It is also
available on the DVI-I interface. A 400MHz integrated RAMDAC provides support for
resolutions up to 2048x1536 (QXGA) at 75Hz refresh rate. For connector details, see
page
.
LVDS interface
The board provides one 40-pin LVDS interface for 18/24-bit single/dual channel panels to
support FPD up to 1600 x 1200 (UXGA) of resolution. The GEMINI also supports a 5-pin
LCD backlight inverter connector and one jumper for panel voltage setting.
DVI interface
The GEMINI board includes a Chrontel CH7307C DVI transmitter interfaced on the
internal 945GME SDVO port. The GEMINI DVI interface supports single link DFP
displays with resolution up to 1600x1200 (UXGA).
TV-out interface
A 480p/720p/1080i/1080p HDTV interface is provided from the GMCH. The GEMINI
supports PAL and NTSC TV systems, and outputs either YPrPb or S-Video or composite
signals thanks to three integrated 10-bit DAC’s.
Enhanced IDE and CompactFlash interface
The GEMINI provides:
•
One Ultra DMA33 IDE interface to support up to 2 ATAPI devices.
•
One CompactFlash Type II socket on the solder side with jumper-selectable
slave/master mode on secondary IDE channel (see page
).
Serial ATA interface
Based on Intel ICH7-M, the GEMINI provides two Serial ATA interfaces with up to
150MB/s of transfer rate.
