68K Interrupt controller, PAL1 (20L10)
PAL20L10 PAL DESIGN SPECIFICATIONS
INTC.DAT DANESH TAVANA 9/25/82
INTERRUPT CONTROLLER MMI, SUNNYVALE
/AS A3 A2 A1 FC2 FC1 FCO NC NC NC NC GND
NC /INTACK1 /INTACK2 /INTACK3 /INTACK4 /INTACKS /INTACK6 /INTACK7 D0 D1 D2 VCC IF (FC2* FC1* FC0* AS) /D2 =/A3
IF (FC2* FC1* FC0* AS) /Dl =/A2
IF (FC2* FC1* FC0* AS) /D0 =/Al
IF (FC2* FC1* FC0* AS) INTACK7 = A3* A2* Al
IF (FC2* FC1* FCO* AS) lNTACK6 = A3* A2*/Al
IF (FC2* FCl* FCO* AS) INTACK5 = A3*/A2* Al
IF (FC2* FC1* FCO* AS) INTACK4 = A3*/A2*/Al
IF (FC2* FC1* FC0* AS) INTACK3 =/A3* A2* Al
IF (FC2* FC1* FC0* AS) INTACK2 =/A3* A2*/Al
IF (FC2* FC1* FC0* AS) INTACK1 =/A3*/A2* Al
FUNCTION TABLE
/AS FC2 FC1 FCO A3 A2 A1 D2 D1 DO
/INTACK7 /INTACK6 /INTACK5 /INTACK4 /INTACK3 /INTACK2 /INTACK1
; / / / / / / /
; I I I I I I I
; N N N N N N N
; T T T T T T T
; A A A A A A A
;/ F F F C C C C C C C
;A C C C A A A D D D K K K K K K K
;S 2 1 0 3 2 1 2 1 0 7 6 5 4 3 2 1 COMMENTS
L H H H L L L L L L H H H H H H H NO INTERRUPT
L H H H L L H L L H H H H H H H L LEVEL 1
L H H H L H L L H L H H H H H L H LEVEL 2
L H H H L H H L H H H H H H L H H LEVEL 3
L H H H H L L H L L H H H L H H H LEVEL 4
L H H H H L H H L H H H L H H H H LEVEL 5
L H H H H H L H H L H L H H H H H LEVEL 6
L H H H H H H H H H L H H H H H H LEVEL 7
H X X X X X X Z Z Z Z Z Z Z Z Z Z OUTPUT HI-Z
L H H L X X X Z Z Z Z Z Z Z Z Z Z OUTPUT HI-Z
L H L H X X X Z Z Z Z Z Z Z Z Z Z OUTPUT HI-Z
L L H H X X X Z Z Z Z Z Z Z Z Z Z OUTPUT HI-Z