Cirrus-logic EP73xx Manual do Utilizador Página 61

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EP7309/11/12 Users Manual - DS508UM4 5-1
Copyright Cirrus Logic, Inc. 2003
55
5
Chapter 5
5System Registers
Introduction
The SYSCON and SYSFLG registers control and report the status of the various
components of the EP73xx system-on-chip device. There are three read/write
SYSCON system configuration registers, and two SYSFLG read only system flag
registers.
Features
The system registers affect aspects of the following features and peripherals:
Keyboard scanner
•Timers
UART/SIR control
Buzzer output control
•Debugmodeselect
SSI/CODEC/DAI/ADC
•LCD
Expansion clock
•Wakeupcontrol
•SDRAM
•OStimercontrol
RUN/CLKEN select
Clock speed/wait state select
•Version
Media change detect
•Powerstatus
RTC subdivide
Boot mode status
•PartID
•VersionID
MaverickKey Unique-ID
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