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CCS Technical Documentation 7 - System Module & UI

Company Confidential NMM-3

Issue 1 (11/2003) Copyright  2003 Nokia Corporation Page 7-21

Company Confidential

Charger connector

Charger interface.

NMM-3 conforms to the global Nokia Charger Interface

ACI

The ACI (Accessory Control Interface) is a point-to-point, bi-directional serial bus. It has

two main features:

• The insertion and removal detection of an accessory device.

• Acting as a data bus between phone and accessory, Intended for control pur-

poses.

A third function of ACI is to identify and authenticate the accessory.

Accessory power is supplied by VAUX2, a linear low dropout regulator in UEME providing

2.78V at 70mA maximum when active (0.5mA in sleep).

ACI data passes to and from UEME via the HEADINT line. UEME level shifts the data and

connects HEADINT to MBUS for TIKU to access.

USB interface

Pin No / Signal

Name

Signal

Description

Spectral

Range

Voltage /

Current Levels

Notes

A. GND Charge GND - 0.85A

B. Charge V Charge DC 0-9V / 0.85A Inner pin

A B

TIKU

D300

NUT

N401

USB ASIP

R409

W2FC

core

ARM92

Tomahawk

Connector

USBSEMODE

USBPUEN

USBSUSPEND

USBVP/FRX

USBVM

USBRCV

USBV0

USBFSE0

USBOEX

VIO

D+

D-

D+

D-

VPU

VBUS

33R

1k5