User Guide

Figure 88 MR sensor connection

ASICs

RAP ASIC

RAP ASIC is a 3G Radio Application Processor. RAM memory is integrated into RAP.

EM ASIC N2300

The EM ASIC (N2300) includes the following functional blocks:

• Core supply generation

• Charge control circuitry

• Level shifter and regulator for USB/FBUS

• Current gauge for battery current measuring

• LED driver for backlights

• Digital interface (CBUS)

EM ASIC N2200

The EM ASIC (N2200) includes the following functional blocks:

• Start up logic and reset control

• Charger detection

• Battery voltage monitoring

• 32.768kHz clock with external crystal

• Real time clock with external backup battery

• SIM card interface

• Stereo audio codecs and amplifiers

• A/D converter

RM-176

Nokia Customer Care System Module and User Interface

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