FIC md02 サービスマニュアル

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Software Functional Overview 
 
3-36 
FIC MD02 Service Manual 
about a computer environment about a computer environment. For example, using DMI 
a program can determine what hardware and expansion boards are installed on a 
computer. 
GPI - 
General Purpose Input. 
GPO - 
General Purpose Output. 
Lid Switch
 - A switch that indicates the notebook LCD Panel has been closed and it can 
be turned off. 
MPEG-2 - Moving Picture Experts Group, a working group of ISO. The term also refers 
to the family of digital video compression standards developed by the group. There are 
two major MPEG standards : MPEG-1 and MPEG-2. The most common 
implementations of the MPEG-1 standard provide a video resolution 352x240 at 30 
frames per second(fps). A newer standard, MPEG-2, offers resolution of 720x480 and 
1280x720 at 60 fps, with full CD-quality audio. 
North Bridge
 - The CPU to PCI interface, also contains the memory and cache 
controllers. 
South Bridge - The PCI to ISA interface, also contains many legacy devices. 
SMM - System Management Mode, Mode of operation while an SMI is active. 
SMI - System Management Interrupt, non-maskable interrupt that causes the system to 
enter SMM. SMM functions include power management, USB legacy keyboard control, 
security, hot keys, and thermal monitoring. 
SMB - System Management Bus, that is used for managing smart batteries, reading 
SDRAM configuration information, and other miscel1aneous system function. 
TBD -To Be Discussed. The mentioned specification is not final that should be 
discussed with related engineers. 
Ultra DMA-33 - A protocol developed by Quantum Corporation and Intel that supports 
burst mode data transfer rates of 33.3 MBps. 
USB -
 A new external bus standard that supports data transfer rates of 12 MBps. A 
single USB port can be used to connect up to 127 peripheral devices, such as mice, 
modems, and keyboards. USB also supports Plug-and-Play installation and hot plugging. 
 
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