[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Slot 3
- Subject: Re: Slot 3
- From: dog_cow@macgui.com (D Finnigan)
- Date: Thu, 28 Apr 2011 19:15:14 +0000 (UTC)
- Newsgroups: comp.sys.apple2
- Organization: Mac GUI
- References: <2011042814373416807-bob@onemanbandcom>
- User-agent: Mac GUI City Usenet Posting
- Xref: g2news1.google.com comp.sys.apple2:21508
]3ob wrote:
> Hi group...
>
> Is slot 3 only reserved for acelleration-based cards, or can other
> cards function properly there? Is there a list of "these cards work in
> slot 3" or similar?
>
When SLOTC3ROM is on, the 256-byte ROM area at $C300 is available to a
peripheral card in slot 3, which is the slot normally used for a terminal
interface. If a card is installed in the auxiliary slot when you turn on the
power or reset the Apple IIe, the SLOT3ROM switch is turned off. Turning
SLOTC3ROM off disables peripheral-card ROM in slot 3 and enables the
built-in 80-column firmware.
The bus and I/O signals are always available to a peripheral card in slot 3,
even when the 80-column hardware and firmware are operating. Thus it is
always possible to use this slot for any I/O peripheral that does not have
built-in firmware.
Source: Apple IIe Reference Manual 1982, pages 132-133
--
]DF$
Mac GUI Vault - A source for retro Apple II and
Macintosh computing.
http://macgui.com/vault/
- Follow-Ups:
- Re: Slot 3
- From: Linards Ticmanis <ticmanis@gmx.de>
- References:
- Slot 3
- From: ]3ob <bob [ @ ] onemanband.com>