參數(shù)資料
型號: 82815EM
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù): 145/163頁
文件大?。?/td> 1049K
代理商: 82815EM
Intel
82815EM GMCH
R
Datasheet
145
Resolution
Colors
NTSC
PAL
16M
Yes
Yes
64k
Yes
Yes
640x400
1
256
Yes
Yes
640x480
256
Yes
Yes
64k
Yes
Yes
16M
Yes
Yes
720x480
1
256
Yes
Yes
64k
Yes
Yes
16M
Yes
Yes
720x576
1
256
Yes
Yes
64k
Yes
Yes
16M
Yes
Yes
800x600
16
Yes
Yes
256
Yes
Yes
32k
Yes
Yes
64k
Yes
Yes
16M
Yes
Yes
These resolutions are supported via centering.
4.12.12.3. DVO Port I
2
C Functionality
I
2
C bus is a standard 2-wire communications bus/protocol. There are two I
2
C compatible buses in the
GMCH2-M for DDC and DVO connectivities. The I
2
C buses are used to collect EDID from Digital
Display Panel, and to detect and configure registers in the TV Encoder, or TMDS Transmitter chips. The
Intel
DVO port controls the video front-end devices through the I
2
C bus using LTVDA and LTVCK
pins. The Display Data Channel or DDC uses I
2
C bus via DDDA and DDCK pins.
4.12.13. DDC (Display Data Channel)
DDC is a standard defined by VESA. Its purpose is to allow communication between the host system and
display. Both configuration and control information can be exchanged allowing plug-and-play systems to
be realized. Support for DDC 2B is implemented.
4.13.
System Reset for the GMCH2-M
Refer to the
Intel 815 Chipset
Platform
Design Guide (Power Sequencing section) for details.
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