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||	FILE:	#9006.PLD
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||	PROJ:	20130517
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||	PART:	G16V8-#9006
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||
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||	DEV :	GAL16V8
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||
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|| 	DESC:	DPRAM CONTROL
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||
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|
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|GAL16V8A
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|
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|| INPUT
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|  1:A10, 2:A11, 3:A12, 4:CX1, 5:RW, 6:PHI2, 7:RES, 8:WP, 9:REN, 11:X,
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|| OUTPUT
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|  12:RAMN, 13:CE0, 14:CE1, 15:CE2, 16:Y, 17:VRMN, 18:RS, 19:INH
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|
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||
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|  ACTIVE-LOW: CE0, CE1, CE2, RAMN, VRMN
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|
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|  PROPERTY: "SIMPLE"
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|
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|  SIGNATURE: "9006    "
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|
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|| --------------------------------------------------------
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|| RAM0, RAM1, RAM2
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|  RAM0 = (CX1' & A12' & A11')
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|  RAM1 = (CX1' & A12' & A11)
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|  RAM2 = (CX1' & A12  & A11' & A10')
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|  VRAM = (RAM0 # RAM1 # RAM2)
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|  CE0R = (RAM0 & RW  & PHI2)
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|  CE0W = (RAM0 & RW' & REN')
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|  CE1R = (RAM1 & RW  & PHI2)
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|  CE1W = (RAM1 & RW' & REN')
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|  CE2R = (RAM2 & RW  & PHI2)
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|  CE2W = (RAM2 & RW' & REN')
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|  CE0  = (CE0R # CE0W)
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|  CE1  = (CE1R # CE1W)
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|  CE2  = (CE2R # CE2W)
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|  INH  = (VRAM & RW' & REN')
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|  RAMN = ((VRAM & RW  & PHI2) # (VRAM & RW' & WP))
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|  Y = X
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|  VRMN = (VRAM & RW')
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|  RS = RES