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|| FILE: #9006.PLD
|| PROJ: 20130513
|| PART: G16V8-#9006
||
|| DEV : GAL16V8
||
|| DESC: DPRAM CONTROL
||
|
|GAL16V8A
|
|| INPUT
| 1:A10, 2:A11, 3:A12, 4:CX1, 5:RW, 6:PHI2, 7:RES, 8:WP, 9:REN, 11:X,
|| OUTPUT
| 12:RAMN, 13:CE0, 14:CE1, 15:CE2, 16:Y, 17:VRMN, 18:RS, 19:INH
|
||
| ACTIVE-LOW: CE0, CE1, CE2, RAMN, VRMN
|
| PROPERTY: "SIMPLE"
|
| SIGNATURE: "9006 "
|
|| --------------------------------------------------------
|| RAM0, RAM1, RAM2
| RAM0 = (CX1' & A12' & A11')
| RAM1 = (CX1' & A12' & A11)
| RAM2 = (CX1' & A12 & A11' & A10')
| VRAM = (RAM0 # RAM1 # RAM2)
| CE0R = (RAM0 & RW & PHI2)
| CE0W = (RAM0 & RW' & REN')
| CE1R = (RAM1 & RW & PHI2)
| CE1W = (RAM1 & RW' & REN')
| CE2R = (RAM2 & RW & PHI2)
| CE2W = (RAM2 & RW' & REN')
| CE0 = (CE0R # CE0W)
| CE1 = (CE1R # CE1W)
| CE2 = (CE2R # CE2W)
| INH = (VRAM & RW' & REN')
| RAMN = ((VRAM & RW & PHI2) # (VRAM & RW' & WP))
| Y = X
| VRMN = (VRAM & RW')
| RS = RES