Charger Interface; User Interface; Touch Module - Nokia RM-701 Service Manual

RM-701
System Module

Charger interface

The charger interface is a 2 mm Dynamo charger plug. Older chargers with a 3.5 mm plug are supported via
the charger adapter cable CA-44.
Charging is controlled by Dynamo charging SMPS circuit. EM ASIC is used only for waking up the system when
the charger is connected.

User interface

Touch module

This phone uses Atmel capacitive touch solution.
The Atmel touch module is interfaced to I2C bus of RAPU. RAPU's GenIO123 is used for Touch INT.
The Atmel touch module operates with VAUX1 supply output from EM ASIC.
Whenever the user touches the touch screen, the controller raises an interrupt to RAPU which initiates I2C
transactions to identify the locations the user touches on the display.
Issue 1
Figure 67 Charger interface
Figure 68 Touch system block diagram
COMPANY CONFIDENTIAL
Copyright © 2011 Nokia. All rights reserved.
Page 6 – 19