
1.2 System Unit Block Diagram | 1 Hardware Overview |
VGA Controller
One Trident
•Internal VRAM, 32MB DDR 250MHz (64MB is also supported.)
•Connected to AGP bus R2.0
•LCD Interface LVDS 2ch
•TV Encoder: Tvxpress2
•DVI Supported by Dock
Sound Controller
•One AC'97Codec AD1981A chip and
•SW sound
EC/KBC (Embedded Controller/Keyboard Controller)
•One Mitsubishi M306K9FCLRP micon chip functions as both EC and KBC.
•EC
This controller controls the following functions:
–Power supply sequence
–Thermal conditions
–LEDs
–Beep
–Device ON/OFF
–Fan speed
–Universal I/O port
–Docker Docking Sequence
–Battery capacity check
–Forced reset
–Flash rewriting
–EC interface
–I2C communication
–EC access
–Slim Select Bay Control
•KBC
This controller has the following functions:
–Scan controller to check status of keyboard matrix
–Interface controller between the keyboard scan controller and the system
–Control of switching and simultaneous operation of the accupoint/external PS/2 mouse and of the internal keyboard/external PS/2 keyboard
TECRA M1 Maintenance Manual |