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1 Hardware Overview 1.2 System Unit Block Diagram
1-12 Satellite Pro M10 Series Maintenance Manual (960-431)
KBC/EC (Keyboard Controller/Embedded Controller)
• One M306K9FCLRP chip functions as both KBC and EC.
• KBC has the following functions:
– Scan controller to check status of keyboard matrix
– Interface controller between the keyboard scan controller and the system
• EC has the following functions:
– Power supply sequence control
– System I/F
– Thermal conditions control
– Flash rewriting
PSC (Power Supply Controller)
• One TMP87PM48U chip is used.
• This controller controls the power sources.
Super I/O
• One SMSC LPC47n227 is used.
• This gate array has the following functions and components.
– Serial Port (NS16C550 Compatible UART)
– Infrared Communications Controller (IrDA v1.2 Support)
– Parallel Port (PS/2 Compatible Bidrectional and IEEE 1284 Compliant
EPP/ECP)
IEEE 1394 Link Layer /Physical Layer Controller
• One TSB43AB22 is used.
• This controller provides the IEEE 1394 link/physical function, and is
compatible with serial bus data rates of 100Mbits/s, 200Mbits/s and
400Mbits/s.
PC Card Power Switch
• One MIC2563A is used.
• The MIC2563A handles the power supply for the PC Card slot.
SD Card Power Switch
• One MAX1607ESA is used.
• The MAX1607ESA is a current-limited switch, which has several safety
features to ensure that the SD Card Slot is protected.
USB Power Switch
• One MAX1922ESA is used.
• The MAX1922ESA is a current-limited switch for two USB ports, which has
several safety features to ensure that the USB port is protected.