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- Path: mips.pfalz.de!not-for-mail
- From: naddy@mips.pfalz.de (Christian Weisgerber)
- Newsgroups: comp.dcom.modems
- Subject: Re: Better UARTs?
- Date: 21 Feb 1996 14:53:35 +0100
- Message-ID: <4gf84v$viq@mips.pfalz.de>
- References: <4g0hq5$166u@usenetw1.news.prodigy.com> <4g7pn6$9pv@pathway1.pathcom.com>
- NNTP-Posting-Host: mips.pfalz.de
-
- insystem@pathcom.com (Geoffrey Welsh) writes:
-
- > As I look over the 16550A spec, I see many things that could have been done to
- > improve the original design. For instance, transmit holding register empty
- > interrupts should have been triggered on the same basis as receive data
- > interrupts (i.e. when there are 1, 4, 8, or 14 _empty_ places in the FIFO) in
- > order to make sure that the system can keep the transmit FIFOs full for best
- > transmit speed.
-
- Ever heard of "character dribble"? Keeping the TX FIFO full is not a
- good idea. (Now, with Auto-RTR/CTS this changes.)
-
- --
- Christian 'naddy' Weisgerber naddy@mips.pfalz.de
- See another pointless homepage at <URL:http://home.pages.de/~naddy/>.
- -- currently reading: Timothy Zahn, Conquerors' Heritage --
-