User Guide

CLK600. The clock source is an internal RC oscillator in EM ASIC N2300 (during the power-up sequence) or

RAPIDO SMPS Clk.

Figure 20 Clocking scheme

USB, SIM, MMC

USB

In this phone the USB connector is the only physical connector, which means that the USB port is used both

for headsets, data transfer as well as for charging. The USB 2.0 is supported with full speed (12 Mbps).

It also supports hot swap, which means that USB devices may be plugged in/out at any time.

This phone is provided with a specific connector for µUSB.

SIM interface

The device has one SIM (Subscriber Identification Module) interface. It is only accessible if battery is removed.

The SIM interface consists of an internal interface between RAP and EM ASIC (N2200), and of an external

interface between N2200 and SIM contacts.

The SIM IF is shown in the following figure:

RM-265

System Module

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