Basic components and functions of UICC are the followings.
R5F212K45DFP of MCU uses 8Mhz external clock to communicate with system card by UART.
OP panel’s keys are composed with total of 28 matrix formats.
(Exclude Wakeup button, 3in1 exclusive key: 2 keys, 4-in-1 exclusive key: 18 keys, common
keys: 8 keys)
MCU and LCD module transmit signals with 4-bit parallel method.
LCD backlight is controlled by switching element.
There’s a situation recognizing function buzzer. (selection sound, incorrect input sound, error
detect sound)
Entering sleep mode and returning to ready can be recognized with lighting of corresponding
Wakeup_LED turned on and off.
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