Date: Thu, 25 Apr 1996 18:00:50 -0500 (CDT) From: Tony Kimball <alk@Think.COM> To: terry@lambert.org Cc: questions@freebsd.org Subject: Re: bounce buffers Message-ID: <199604252300.SAA03545@compound.Think.COM> In-Reply-To: <199604252134.OAA25496@phaeton.artisoft.com> (message from Terry Lambert on Thu, 25 Apr 1996 14:34:04 -0700 (MST))
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Bounce buffers are required for 24 bit (ISA) bus master DMA to addresses over 16M. Only bus-mastering DMA, then? I'm quite vague on PC hardware, so correct my errors, please, but is there not a slave mode of DMA operation as well? Are bounce buffers required for slave mode?
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