Article View: sci.electronics
Article #1658280C188EA memory accesses
From: tom lowdermilk
Date: Mon, 25 Jan 1993 23:57
Date: Mon, 25 Jan 1993 23:57
12 lines
889 bytes
889 bytes
A what-if question; I'm designing a memory controller to interface to the 80C188EA. According to the timing diagrams, there a three cycle status bits S(2:0) which are valid before the T1 state. The read or write command is valid during the T2 state. My question is this; if I know what kind of cycle I'll be performing even before the command is given, can I let my memory state machine just look at these status bits when I latch the address, instead of waiting around for the command. - tjl
Technical Details
Message-ID:
<1993Jan25.235716.25148@imagen.com>Path:
arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sun-barr!west.West.Sun.COM!male.EBay.Sun.COM!exodus.Eng.Sun.COM!sun!imagen!crane!tomShow Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sun-barr!west.West.Sun.COM!male.EBay.Sun.COM!exodus.Eng.Sun.COM!sun!imagen!crane!tom From: tom@crane.imagen.com (tom lowdermilk) Newsgroups: sci.electronics Subject: 80C188EA memory accesses Message-ID: <1993Jan25.235716.25148@imagen.com> Date: 25 Jan 93 23:57:16 GMT Sender: tom@crane (tom lowdermilk) Organization: imagen Lines: 12