PAL16R4
PAT1025
X36 Z80A-DMA INTERFACER                              1984-03-21/OEL

PCLK' BA1' BA2' TR0' TR1 TR2' IOQ' R BGA' GND
OE' DS' DRD' DEL' RY2' RY1' RY0' DWR' DIOQ' VCC


IF(BGA') /DIOQ'  = /IOQ'

IF(BGA')  /DWR'  = /IOQ'*/R

          /RY0' := /TR0'*BA1'*DWR'*DRD'*DEL' +
                   /RY0'*DWR'*DRD' +
                   /TR0'*BGA' +
                   /TR0'*/BA1'

          /RY1' := TR1*/BA1'*BA2'*DWR'*DRD'*DEL' +
                   /RY1'*DWR'*DRD' +
                   TR1*BA1' +
                   TR1*/BA2'

          /RY2' := /TR2'*/BA1'*/BA2'*DWR'*DRD'*DEL' +
                   /RY2'*DWR'*DRD' +
                   /TR2'*BA1' +
                   /TR2'*BA2'

          /DEL' := /DRD'*/BGA' +
                   /DWR'*/BGA'

IF(BGA')  /DRD'  = /IOQ'*R

IF(/BGA')  /DS'  = DIOQ'*/DRD'*/DEL' +
                   DIOQ'*/DWR'*/DEL' +
                   DIOQ'*/DRD'*R


FUNCTION TABLE:

PCLK' OE' TR0' TR1 TR2' BGA' BA1' BA2' IOQ' R
DS' DRD' DWR' DIOQ' DEL' RY2' RY1' RY0'

;P                D
;C  T T BBB I   DDI D RRR
;LO RTR GAA O  DRWO E YYY
;KE 0R2 A12 Q  SDRQ L 210
;'' '1' ''' 'R '''' ' '''
--------------------------
 CL HLH HHH HH ZHHH H XXX
;
 CL HLH HHH HL ZHHH H XXX
 CL HLH HHH LL ZHLL H HHH
 CL LHL HHH LL ZHLL H LLL
 CL LHL HHH HL ZHHH H LLL
;
 CL LHL LHH XL HHHH H LLL
 CL LHL LHH XL HHHH H LLL
 CL LHL LHH XL HLHL L LLH
 CL HHL LHH XL HHHH H LLH
 CL HHL LHH XL LHLH L LLH
 CL HHL LHH XL HHHH H LLH
;
 CL HHL HHH HH ZHHH H LLH
 CL HHL HHH LH ZLHL H LLH
 CL HHL HHH HH ZHHH H LLH
;
 CL HHL LLH XL HHHH H LLH
 CL HHL LLH XL HHHH H LLH
 CL HHL LLH XL LLHH L LHH
 CL HHL LLH XL HHHH H LHH
;
 CL HLL HHH HL ZHHH H LHH
 CL HLL HHH LL ZHLL H LHH
 CL HLL HHH HL ZHHH H LHH
;
 CL HLL LLL XH HHHH H LHH
 CL LLL LLL XH HHHH H LHL
 CL LLL LLL XH LLHH L HHL
 CL LLL LLL XH HHHH H HHL
;
 CL LLH HHH HH ZHHH H HHL
 CL LLH HHH LH ZLHL H HHL
 CL LLH HHH HH ZHHH H HHL
;
 CL LLH LHH XH HHHH H HHL
 CL LLH LHH XH HHHH H HHL
 CL LLH LHH XH LLHH L HHH
 CL LLH LHH XH HHHH H HHH
 CL LLH LHH XH HHLL L HHH
 CL HLH LHH XH HHHH H HHH
;
 CL HLH HHH HH ZHHH H HHH
;
 XH XXX LXX XX XZZZ Z ZZZ
--------------------------


DESCRIPTION: