17.1.2. The Meaning of the Motion of Pin 128
·
The period of Host Power Up (Hardware Initialization)
In this period, the host sets up some registers in order to wake up the system.
·
The period of Host Reset (Software Initialization)
In this period, the host reads the parameter from the memory and initializes module.
17.2. Flash Memory (IC701)
Following information data is stored.
·
Voice signal
ex: Pre-recorded Greeting message, Incoming message
·
Telephone number, etc.
ex: Telephone Directory number, Caller ID data, ID code
·
Settings
ex: message numbers, caller ID numbers, pulse tone dial
17.3. Power Supply Circuit
Function:
The power supply voltage from AC adaptor is converted to the desired voltage of each block.
Circuit Operation:
·
IC301, Q301 and D303: 4.0V DCDC Converter
·
IC300: 3.3V Regulator
·
IC601: 2.5V Regulator
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KX-TG2360JXS / KX-TGA236JXS