Caple C871i Manual do Utilizador descarregar pdf (Página 311)

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Apple II Computer Info

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### FILE : nsclock.reset

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### Created : Monday, October 11, 1999 Modified: Monday, October 11, 1999

### File Type: "TEXT" File Creator: "LMAN"

### File Size: 3014 bytes 2 KB

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From: [email protected] (Supertimer)

Newsgroups: comp.sys.apple2

Subject: Re: No Slot Clock - Damaged?

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Date: 11 Oct 1999 03:20:21 GMT

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[[Mailed to Gus Vilomar and posted to csa2.]]

"Gus Vilomar" <[email protected]> wrote:

>Is there a way to reset the clock other than the NSC software? The NSC

>software is not letting me reset the clock - I keep on getting "No clock

>found or faulty time". Is there a "reset button" on the chip? I doubt it

>but it's worth asking.

There is a possibility that the IC is locked up and the battery

is not dead. I've been reading the NSC manual and according

to it, the SmartWatch chip only draws power from the battery

when the computer is powered down. Otherwise, it draws

power from the computer. So even with a dead battery, the

SmartWatch should work providing you leave the power on.

The manual says:

"The SmartWatch is a 28-pin, 600 mil wide DIP socket with

a built in CMOS timekeeper function and an embeded lithium

energy source to maintain time and date. It accepts any

28-pin bytewide ROM or volatile RAM. A key feature of the

SmartWatch is that the timekeeper remains transparent to

the memory device placed above. The SmartWatch monitors

VCC (+5 volts) for an 'out of tolerance' condition. When such

a condition occurs, an internal lithium energy source is

automatically switched to prevent loss of clock data."

So the SmartWatch only uses the battery when the power

from the computer (VCC +5 volts) is absent.

My guess is that the data in the chip has somehow

become corrupted. As to how to reset the chip, the manual

Apple II Computer Technical Information : Apple II Family Hardware Info

ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 311 of 572

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Caple C871i Manual do Utilizador Página 311

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Caple C871i Manual do Utilizador Página 311

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