AT91SAM7A2-AI datasheet(76/369 Pages) ATMEL

tên linh kiện	AT91SAM7A2-AI

Giải thích chi tiết về linh kiện	AT91 ARM Thumb-based Microcontrollers

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PRELIMINARY

AT91SAM7A2

6021A–ATARM–07/04

WT Control Register

Name:

WT_CR

Access:

Write-only

Base Address:

0x060

• SWRST: WT Software Reset

0: No effect.

1: Reset the WT.

A Software triggered hardware reset of the WT is performed. It resets all the registers. The software must wait for LFCLK to

set up properly before using other registers.

• SECSEN: WT Seconds Counter Enable

0: No effect.

1: Enables the WT seconds counter.

• SECSDIS: WT Seconds Counter Disable

0: No effect.

1: Disables the WT seconds counter.

In case both SECSEN and SECSDIS are equal to one when the control register is written, the WT seconds counter will be

disabled.

• ALARMEN: WT Alarm Enable

0: No effect.

1: Enables the WT alarm.

• ALARMDIS: WT Alarm Disable

0: No effect.

1: Disables the WT alarm.

In case both ALARMEN and ALARMDIS are equal to one when the control register is written, the WT alarm will be disabled

––

–––

––

–

––

–––

––

–

––

–––

––

–

543

–

ALARMDIS

ALARMEN

SECSDIS

SECSEN

SWRST

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