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- From: cascio@comet.enet.dec.com (Pete Cascio)
- Subject: Re: IRQ2 or IRQ5
- Message-ID: <1993Jan11.093205.2220@nntpd2.cxo.dec.com>
- Sender: usenet@nntpd2.cxo.dec.com (USENET News System)
- Organization: Digital Equipment Corp. Consulting Services, Colorado Springs
- References: <1993Jan7.122713.17450@walter.cray.com> <zvtTrAsDBh107h@dadstoy.gbdata.com>
- Date: Mon, 11 Jan 1993 09:24:13 GMT
- Lines: 21
-
- In article <zvtTrAsDBh107h@dadstoy.gbdata.com>, zatar@dadstoy.gbdata.com (Terry Stockdale) writes...
- >
- >That's "cascade" as in falls into a bunch of pieces. The IRQ2 was split
- >at the time of the AT (I think) to provide more interrupts for use. Eight
- >bit cards still can't use the bigger numbers, but I understand that the
- >16bit cards that need interrupts can do so.
- >
- >According to my new motherboard's manual, here they are:
- >
- >IRQ 2 |--IRQ 8 Realtime clock interrupt
- > |--IRQ 9 INT 0AH
- > |--IRQ 10 Reserved
- > |--IRQ 11 Reserved
- > |--IRQ 12 Reserved
- > |--IRQ 13 Coprocessor
- > |--IRQ 14 Hard Disk
- > |--IRQ 15 Reserved
-
- IRQ15 isn't exactly "reserved." At least not to Artisoft. My LANtastic
- Ethernet card had the option of using IRQ2 for 8-bit PC's or IRQ15 for AT
- buses.
-