Caple C871i Manual de usuario descargar pdf (Pagina 513)

Apple II Computer Info

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### FILE : transwarp

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### Created : Sunday, January 14, 1996 Modified: Sunday, January 14, 1996

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

### File Size: 3610 bytes 3 KB

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From: [email protected] (David E A Wilson)

Newsgroups: comp.sys.apple2

Subject: Re: Any Transwarp (//e) users out there?

Date: 22 Sep 1994 10:57:40 +1000

Organization: University of Wollongong, NSW, Australia.

Lines: 53

Message-ID: <[email protected]>

References: <[email protected]>

NNTP-Posting-Host: zircon.cs.uow.edu.au

[email protected] (Kevin Burtch) writes:

>I just got a //e, and was wondering a few things about the Transwarp card

>that came with it. I already found, by experimentation, that by hitting the

>ESC twice as "Transwarp" is displayed at powerup I can switch it back to low

>gear. (so to speak)

Also you can press 0 or 9 while the logo is displayed and it will run the

built in self test (the 9 puts up a copyright message first). Now why does

this not get a mention in the manual??

>First, just how fast is this thing? I can't find a clock on the card, so I'm

>guessing it uses the 3.5MHz signal from the slots. (am I even close?)

The manual says 3.6MHz (near enough to 3.58 I guess) while the self test shows

3.3 for full speed and 2.1 for half speed (strange - I would have expected less

than 1.7).

>Second, am I right about using ESC twice at bootup being the only way to slow

>it down? After I hit CONTROL-RESET, it speeds back up, just like it says when

>you use the ESC trick. ;^) Is there a POKE or anything I can use from BASIC, or

>assy? How do I speed it back up? Is CONTROL-RESET and power-off/on the only way

>to change the speed? (I'd rather not have to cycle the power every time...)

Pressing ESC disables the Transwarp completely. A poke of 3 to $c074 does the

same. The two switch #8 select the default speed (1/1.7/3.6MHz). A poke of 1 to

$c074 will slow the TW down to 1MHz using the TW CPU.

>Third, what are the switches for? What are the options? (this one is important)

>I know there are two sets of eight swiches, but I really need to know. I assume

>that some are for disabling the accellorator when accessing certain slots, like

>the floppy controller, etc. I really appreciate this one!

Yes. The left bank tells the TW which slots have RAM cards (16k/128k etc).

The right bank tells the TW which slots have slow cards (floppy disks, clocks

etc). Slot number as per switch number. Off means full speed (I think - I will

Apple II Computer Technical Information : Apple II Family Hardware Info

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