; JED2EQN -- JEDEC file to Boolean Equations disassembler (Version V063)
; Copyright (c) National Semiconductor Corporation 1990-1993
; Disassembled from j151-u5.jed. Date: 2024-06-05

chip j151-u5 PAL22V10

CLK	= 1 
LK15_R16	= 2 
/LLOCK	= 3 
BG	= 4	; STEbus Bus Grant
BA15	= 5	; CPU A15
/EDD_delayed	= 6 
/LS2	= 7 	; CPU Latched Status bit 2
DT	= 8	; CPU Data Acknowledge
/LCS	= 9 	; CPU Lower Chip Select
TRFER	= 10 	; STEbus Transfer Error
/UCS	= 11 	; CPU Upper Chip Select
GND	= 12 
/MCS2	= 13 	; CPU Middle Chip Select
CM1_o14	= 14  	; STEbus Command Modifier 1
CM1_o15	= 15	; Repeat of pin 14 
/EDD	= 16 	; STEbus Enable Data Drive
f17	= 17 
/DS	= 18	; STEbus Data Strobe
pin_19	= 19 
BR	= 20	; STEbus Bus Request
ARDY	= 21  	; CPU 
/AS	= 22 	; STEbus Address Strobe
f23	= 23 
VCC	= 24 

equations


f23	=  BG

f23.oe	=  vcc



AS	=  /pin_19 * EDD_delayed * EDD
	+ AS * BR * DS

/AS.oe	=  vcc




f17	=  CLK * /LS2 * /LCS * /UCS * /MCS2
	+  CLK *  LS2 * /BA15

f17.oe	=  vcc

/ARDY	= /BG     * f17
	+ /pin_19 * f17

ARDY.oe	=  vcc

BR	= /f23 * f17
	+   BR * f17
	+ BR * EDD
	+ LLOCK * BG * BR

BR.oe	=  vcc

pin_19	=  DS * DT
	+ DS * TRFER
	+ /LK15_R16 * DS
	+ BR * pin_19

pin_19.oe	=  vcc

DS	=  AS * /pin_19
	+ DS * f17

/DS.oe	=  vcc

EDD	=  BG * BR * f17 * /DT
	+ AS * pin_19 * EDD
	+ f17 * EDD

/EDD.oe	=  vcc

;
; CM1 is directly driven by two PAL pins
;


/CM1_o15	=  LS2

CM1_o15.oe	=  EDD

/CM1_o14	=  LS2

CM1_o14.oe	=  EDD