MAC7200 datasheet(24/976 Pages) FREESCALE

24 / 976 page

MAC7200 Microcontroller Family Reference Manual, Rev. 2

xxiv

Freescale Semiconductor

24.2

External Signal Description .............................................................................................444

24.2.1

VDDPLL, VSSPLL ..........................................................................................................445

24.2.2

EXTAL, XTAL ............................................................................................................445

24.2.3

XCLKS (eXternal CLocK Select) ...............................................................................445

24.3

Memory Map/Register Definition ...................................................................................446

24.4

Functional Description.....................................................................................................446

24.4.1

Gain control .................................................................................................................446

24.4.2

Clock Monitor..............................................................................................................446

24.4.3

Doze Mode Operation..................................................................................................446

24.5

Initialization/Application Information .............................................................................447

24.6

OSC Bus Aborts...............................................................................................................447

24.7

OSC Differences from MAC71xx ...................................................................................447

24.8

OSC Application Usage...................................................................................................447

24.8.1

OSC Mode Selection ...................................................................................................447

24.8.2

OSC Mode - ALC Mode (XCLKS = 1).......................................................................447

24.8.3

OSC Mode - External Clock Mode (XCLKS = 0) ......................................................448

Chapter 25

System Service Module (SSM_MAC7202)

25.1

Introduction......................................................................................................................449

25.1.1

Overview......................................................................................................................449

25.1.2

Features........................................................................................................................449

25.1.3

Modes of Operation .....................................................................................................449

25.2

External Signal Description .............................................................................................450

25.3

Memory Map/Register Definition ...................................................................................450

25.3.1

Register Descriptions...................................................................................................450

25.3.1.1

System Status Register ............................................................................................450

25.3.1.2

System Memory Configuration Register .................................................................452

25.3.1.3

Debug Status Port Register ......................................................................................453

25.3.1.4

Error Configuration .................................................................................................455

25.3.1.5

System Reset Register .............................................................................................456

25.4

Functional Description.....................................................................................................457

25.4.1

System Configuration/Status .......................................................................................457

25.5

Initialization/Application Information .............................................................................458

25.5.1

Enabling the SSM ........................................................................................................458

25.5.2

Reset.............................................................................................................................458

25.5.3

Using the STATUS register..........................................................................................458

25.5.4

Using the MEMCONFIG register................................................................................459

25.6

SSM Bus Aborts ..............................................................................................................459

25.7

SSM Differences from MAC71xx ...................................................................................459

MAC7200 Datasheet(PDF) 24 Page - Freescale Semiconductor, Inc

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