1 Hardware Overview 1.2 System Unit Block Diagram
1-12 TECRA M3 Maintenance Manual (960-507)
? EC/KBC (Embedded Controller/Keyboard Controller)
? One Mitsubishi M306KA 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 and internal
keyboard
? PSC (Power Supply Controller)
? One TMP87PM48UG chip is used.
? This controller controls the power sources.
To Next Page
Loading...
