F21 Microprocessor Overview

A free F21 simulator and a free F21 emulator are available in the Ultra Technology Online Store

F21d was submitted to Mosis for fabrication on 8/20/98, and should be returned November 98 for packaging in 68 pin CLCC.

F21d is being fabricated .8 micron CMOS technology using the HP process at Mosis. F21d is being prototyped in a 68 pin ceramic package similar to the 68 pin PLCC that will be used for production. Click here to see the F21d CLCC Pinout PDF Data Sheet 9/13/98 or
Preliminary PDF Data Sheets for F21 9/13/98 or
F21 status, or click here to see the F21d Prototype Specifications

The F21 microprocessor contains a Stack Machine CPU, a video i/o coprocessor, an analog i/o coprocessor, a serial network i/o coprocessor, an parallel port, a real time clock, some on chip ROM (* not on F21d), and an external memory interface.

Functional diagram the F21 Microprocessor

Related Information in Hypertext files:
• F21d Prototype Specifications 9/13/98
• F21 simulator and F21 emulator in the Ultra Tecnology Online Store
• F21c Prototype Specifications 6/4/97
• F21c prototype PCB 6/1/97
• F21b Prototype Specifications 6/1/97
• F21 Microprocessor Status Updated 6/1/97
• F21 Printed Circuit Board Version 1.0 Status 3/4/96
• F21 and F*F 1993 J. Fox
• Parallel Forth - the new approach 1993 Dr. M. Montvelishsky
• Forth-Linda 1991 J. Fox
• Chuck Moore's company "Computer Cowboys"
• Ultra Technology
• MISC Chips
• Life Beyond MuP21 Talk by Chuck Moore to the SVFIG 5/27/95
• MuP21 Microprocessor
• MuP21 a High Performance MISC Processor" Chen Ting and Charles Moore 3/17/95
• S21 Simulator for MuP21
• Forth Meets Laws of Form 1994 J. Fox
• P21Forth 1.02 available as shareware 9/12/95
• html guide to OK version 1.01 Source code to OK ver 1.01 for the MuP21 4/18/95
• P21Forth 1.02 User's Manual in hypertext and Word for Windows formats 4/16/95

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