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1.2 System Configuration
1.2.1 Hardware Block Diagram
CPU
i486GX
1
Power switch
A/D
converter
Buffer
DRAM
FLASH ROM
(DINOR)
MASK ROM
Lithium-ion
battery
Secondary sub-battery
Primary sub-battery
IrDA
Driver/Receiver
RS-232C
driver
PC card slot
IrDA
1.1
IrDA
1.0
16550
PC card
controller
Analog touch
panel
Keyboard
controller
NAND FLASH
NAND
interface
Key
LCDLCTC
VGA
controlle
r
PMU
COM 1
COM 2
Battery voltage monitoring sensor
Tem
p
erature sensor
Illumination sensor
8-pin
14-pin
UART/
SIR
BUS
Controller
PMU
ASIC
RTC
RTC
EL Backlight
BL controller
For IT-2000W
only
IT-2000D20
IT-2000D30
IT-2000D60