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M46

Baseband Processor for GSM Applications

Conexant Systems 

M46

Baseband Processor

System

Reference Clock

SIM Interface

Conexant Serial

Bus

RTC Alarm

RTC Supply

Annunciator

Keypad

GPIO

SIM

Interface

Conexant

Serial Bus

Real-Time

Clock

Timers

Clock

Enables

Pulse Width

Modulator

Keypad

Interface

GPIO Ports

DMA

Controller

Cyclic

Redundancy

Check

Clock Generation and PLL

Clock for Internal

Peripherals

IROM

Internal

Peripheral Bus

DSP Clock

ARM Clock

ARM Core

ARM Bus

System Integration Unit

Dual Port RAM

IRAM

DSP Core

Control Port

Receive Port

Codec Port

DSP Control Port

DSP Receive Port

DSP Codec Port

Figure 1. BP Block Diagram

External

Expansion Bus

ARM

Interrupt

Controller

Debug

Serial Port

Serial Data

Services Serial

Port

IrDA Pulse

Shaper

Autobaud

Escape

Sequence/

Flow Control

System Address Bus

System Data Bus

System Chip Selects

Debug Port

SDS Port

IrDA Compatible

SDS Port

C854

2

June 14, 2000

Conexant

Proprietary Information and Specifications are Subject to Change

100779C

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