; JED2EQN -- JEDEC file to Boolean Equations disassembler (Version V063)
; Copyright (c) National Semiconductor Corporation 1990-1993
; Disassembled from J063-U05.jed. Date: 2012-10-28

chip J063-U05 PAL12L6

CM0	=	1		; from STEbus 
CM1	=	2		; from STEbus 
CM2	=	3		; from STEbus
/DATSTB	=	4		; from STEbus 
A1	=	6		; from STEbus  
A2	=	7		; from STEbus  
A3	=	8		; from STEbus  
/ADR	=	9		; Address valid from LS688 comparator
GND	=	10 
U9_Q4	=	11 
U9_Q6	=	12 
/ACT	=	13 
/INTACK	=	14		; to D of a flip flop, 
				; whose Q is the INTACK for the SCC chips
/CS1	=	15 
/CS2	=	16 
/TRIG	=	17		; enables STEbus data buffer
/DATACK	=	18 		; to STEbus 
U9_Q7	=	19 
VCC	=	20 

equations

DATACK	=	CM2 * /CM1        * DATSTB * ADR * U9_Q7 * /A1 * /A2 * A3
	+	CM2 * /CM1        * DATSTB * ADR * U9_Q7 * /A3

TRIG	=	CM2 * /CM1        * DATSTB * ADR

CS1	=	CM2 * /CM1                 * ADR * /A3 * /A2      
CS2	=	CM2 * /CM1                 * ADR * /A3 *  A2      

INTACK	=	CM2 * /CM1 *  CM0 * DATSTB * ADR *  A3 * /A2 * /A1

ACT	=	CM2 * /CM1 * /CM0 * DATSTB       * /A3             * /U9_Q6 * U9_Q4
	+	CM2 * /CM1 *  CM0 * DATSTB       * /A3
	+	CM2 *  CM1 *  CM0 * DATSTB * ADR *  A3 * /A2 * /A1 *  U9_Q6

; ACT indicates an action, read or write.
; It is ORed with CM0 true and false to give the /RD and /WR for the SCC chips
;