Bit Up Counter With Load. Bit Up Counter With Load. Up vote 1 down vote favorite I am a complete beginner in VHDL, so I was hoping that someone could help me with this project I am working on. Following is the VHDL code for a 4-bit unsigned down counter with synchronous set. An up/down-counter will probably have to have some way (a pin input, for example) for you to control which direction the counter counts. Useful for 8, 12 or 16 bit counters, etc., using more than one chip. Pin 13 is a borrow output. Useful when counting down. VHDL Tutorial: Learn by Example-- by Weijun Zhang, July 2001 *** NEW (2010): See the new book VHDL for Digital Design, F. Concise (180 pages), numerous examples, low-cost. I want a 16 bit up/down binary counter in IC form or combination of ICs Remember Me? Forum New Posts FAQ Forum Actions Mark Forums Read Community Groups Reported Items Quick Links. This page contains VHDL tutorial, VHDL Syntax, VHDL Quick Reference, modelling memory and FSM, Writing Testbenches in VHDL, Lot of VHDL Examples and VHDL in One Day Tutorial. 8-Bit Up Counter With Load Feb-9-2014 Copyright The 74HC40103 is an 8-bit synchronous down counter. It has control inputs for enabling or disabling the clock (CP), for clearing the counter to its maximum count and for presetting the counter either synchronously or asynchronously.
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