Circuit Cellar Ink 67
February 1996

Table of Contents

2 Ken Davidson	Task Manager The Embedded INK
6	Reader I/O Letters to the Editor
8 Harv Weiner	New Product News
12 Monte Dalrymple	Updating a Classic: the Z80380 Microprocessor After reviewing the Z80's popularity, Monte introduces the Z380, a new chip offering a full complement of 16-bit data manipulations and enough 32-bit instructions to handle the new 32-bit addresses.
18 Richard Newman	Connect the Personal PBX to the Real World Richard presents a circuit that connects the Personal PBX small switch with the "outside" world -- the telephone company central office. A SLIC interface used in conjunction with the PBX enhances conversation quality. Download: PBXCODE.ZIP
26 David Prutchi	LPT: Analog! A 12-bit A/D Converter Printer Port Adapter Are you having problems getting collected data from instruments into your computer without a fancy interface? If so, LPT: Analog! may help. It interfaces analog-output instruments and most PCs. Download: LPTANALG.ZIP
34 Ron Cates	PIC17C44 High-End Microcontroller Architectural Overview Here's an MCU that provides increased performance and an improved migration path. Discussion focuses on the instruction set, register file, bus structure, and variable word-length instructions.
Embedded PC 42 Harv Weiner	Nouveau PC
Embedded PC 47 R. E. Billings	High-Speed Network Technology Traffic jams used to happen only on the way to and from work. However, with the vast increase in network traffic, data congestion is becoming a problem at work also. Billings offers a fix with new high-speed networking.
Embedded PC 54 Ed Nisley	Unscrewing the Inscrutable With off-the-shelf components, tweaking becomes the norm for engineers. Here, Ed presents some references and sources he's used while writing decidedly nonstandard 80x86 programs and building oddball hardware.
Embedded PC 59 Dave Cox Paul Olsen	PC/104 Quarter Chassis and Enclosures: A PC/104 Packaging Overview Different problems need different solutions. This is especially true in packaging where real estate, power, temperature, shock, and so on can have a dramatic effect. Dave and Paul give an overview of what is out there in PC/104 design.
Embedded PC 65 Russ Reiss	Applied PCs Small Displays for Embedded Systems This month, Russ points out smaller display options available to the embedded system architect. He gets into the nitty-gritty of how designers interface these small, non-PC-compatible units to their embedded PC designs.
72 Ed Nisley	Firmware Furnace Vid-Link Characters: Part 2: Bits to Dots After last month's discussion of the Vid-Link hardware, Ed sets out to squeeze the necessary firmware into an impossibly small space. Find out what tricks he has to pull to do it. Download: VIDLINK.ZIP
78 Jeff Bachiochi	From the Bench Intel Hex to BASIC Data Statement Translator Are you an 8052 user trying to mix assembly language and BASIC? If so, Jeff has a solution. He presents a translation file which automatically creates a BASIC data statement file from an Intel hex file. Download: FTB67.ZIP
86 Tom Cantrell	Silicon Update Fuzzy Buster Fuzzy logic is no longer quite so alien. As Tom shows in this article, fuzzy logic has hit hardware. The AL220 fuzzy controller offers simple, small, and cheap solutions for management of analog input and output.
81	Advertiser's Index
91 Ken Davidson	ConnecTime -- Excerpts from the Circuit Cellar BBS
104 Steve Ciarcia	Priority Interrupt It Just Frosts My Chops

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