; JED2EQN -- JEDEC file to Boolean Equations disassembler (Version V063)
; Copyright (c) National Semiconductor Corporation 1990-1993
; Disassembled from SPEC_O.JED. Date: 2025-09-17

chip SPEC_O PAL14L4

A7	= 1
A6	= 2
A5	= 3
A4	= 4
A3	= 5
A2	= 6
A1	= 7
A0	= 8

/LS32PIN3	= 9	; something active low, enables NMIWR
GND		= 10
LS175PIN10	= 11
!NMISEL		= 13	; selects immediate or delayed NMI

!RAMCE	= 14
!KEYIO	= 15
!NMIWR	= 16
!NMI	= 17
!DEL	= 18
!IMM	= 19
VCC	= 20 

equations

NMI	= IMM * !NMISEL * LS175PIN10
	+ DEL *  NMISEL * LS175PIN10
;
; Access 0xFF to write an NMI
;
NMIWR	= A7 * A6 * A5 * A4 * A3 * A2 * A1 * A0 * LS32PIN3
;
; This signal always true
;
KEYIO	= vcc
;
; This signal always true, and the other PAL therefore assumes it to be.
;
RAMCE	= vcc