Caple C871i Manuale Utente Scaricare il pdf (Pagina 41)

100

101

Apple II Computer Info

#############################################################################

### FILE : breadboard

#############################################################################

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

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

### File Size: 3914 bytes 3 KB

#############################################################################

Newsgroups: comp.sys.apple2.programmer

Path:

news.uiowa.edu!news.uiowa.edu!uunet!in1.uu.net!comp.vuw.ac.nz!actrix.gen.nz!dempso

From: [email protected] (David Empson)

Subject: Re: Bare board for Apple //e

Message-ID: <[email protected]>

Sender: [email protected] (News Administrator)

Organization: Actrix - Internet Services

Date: Sat, 16 Sep 1995 14:29:50 GMT

References: <[email protected]> <[email protected]>

<[email protected]> <[email protected]>

X-Nntp-Posting-Host: atlantis.actrix.gen.nz

Lines: 99

In article <[email protected]>,

Richard Steven Walz <[email protected]> wrote:

> I thought the board for // and //+ and //e was the same, is it not?

Prototyping boards certainly would be (and for the IIgs).

The slots on all slotted Apple IIs are physically identical, and are

compatible with most cards. In some cases there are firmware or CPU

compatibility problems (e.g. many new cards require an enhanced IIe or

IIgs).

There are minor differences between the slot signals on the various

machines (and even on some slots in the same machine), mostly affecting

rarely used special pins. Here is a quick summary:

Pin 1: I/O Select ($Cn00-$CnFF, where n is the slot number).

Pins 2-17: Address bus.

Pin 18: Read/Write.

Pin 19: unused on the II and II+. On the IIe and IIgs, this has

composite horizontal and vertical sync on slot 7, and is unused on

other slots, except for slot 1 on the IIe only, which has a diagnostic

function to disable the oscillator on the motherboard.

Pin 20: I/O Strobe ($C800-$CFFF).

Pin 21: this is the RDY input to the micro on all machines, but it

behaves a little differently in the IIgs, or in a machine with a 65802

installed.

Pin 22: this is the DMA pin on all machines. Again, there are special

Apple II Computer Technical Information : Apple II Family Hardware Info

ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 41 of 572

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 571 572

Caple C871i Manuale Utente Pagina 41

Commenti su questo manuale

Caple C871i Manuale Utente Pagina 41

Commenti su questo manuale

Prodotti e manuali riguardandi Piani cottura Caple C871i