Digital Design Using ABEL
PTR Prentice Hall, Jan 1, 1994 - ABEL (Computer program language) - 322 pages
Written by one of the original design team that produced ABEL, this a reference for users of this widely used HDL. An accompanying disk includes the ABEL compiler, optimizer and logic simulator software - allowing designers to use the HDL-based logic design techniques described. The text emphasizes solutions to common design problems, includes actual complete applications in the form of ABEL source files and corresponding design descriptions.
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ABEL source file active-low adder asynchronous state machine binary Boolean equations circuitry clock comparator complex Data I/O Corporation declarations decoder described design file diagram Digital Design directive don't-care dot extension eight-bit encoding end Figure example expression feedback fitter FPGAs frame grabber GenLock gray code high-level equations implemented inverted JK flip-flop K-map L-value language compiler latch logic cell logic circuit logic descriptions logic device logic function logic gates logic minimization logic synthesis Mach 215 device macro macrocell minsum minterms module multiplexer no-connect node on-set ON,OFF optimization output enable output signal PAL block pin istype pin register pin-to-pin PLDs polarity Prentice Hall prime implicants product terms radix registered outputs reset result routes sample sequential circuit seven-segment display shift register shown in Figure special constants specified statement sum of products synchronous test vectors transition logic truth table values variable vertical blanking interval XOR gates