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Rev | Author | Line No. | Line |
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1 | - | 1 | || FILE: #0160.PLD |
2 | || PROJ: 20120600 |
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3 | || PART: G16V8-#0160 |
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4 | || |
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5 | || DEV : GAL16V8 |
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6 | || |
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7 | || DESC: VDC CONTROL |
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8 | || |
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9 | | |
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10 | |GAL16V8A |
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11 | | |
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12 | || INPUT |
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13 | | 1:VDC, 2:PHI2, 3:RW, 4:PHI0, 5:-, 6:WV, 7:EN2, 8:S0, 9:F16, 11:S16, |
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14 | | 12:F20, 13:S1, 14:SX, |
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15 | || OUTPUT |
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16 | | 15:CS0, 16:CS1, 17:DCLK, 18:M16, 19:M20 |
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17 | | |
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18 | | ACTIVE-LOW: CS0 |
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19 | | |
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20 | | PROPERTY:"SIMPLE" |
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21 | | |
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22 | | SIGNATURE: "0160 " |
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23 | | |
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24 | || -------------------------------------------------------- |
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25 | || SELEZIONE DCLK PER MOS8563 (S16=0 ->16MHz, S16=1->20MHz) |
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26 | | DCLK = ((S16 & F20) # (S16' & F16)) |
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27 | | M16 = ((F20 & S1) # (F16 & S1')) |
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28 | | M20 = ((F16 & S1) # (F20 & S1')) |
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29 | || -------------------------------------------------------- |
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30 | || ABILITAZIONE MOS8563 |
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31 | | VDCA = VDC' |
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32 | || -------------------------------------------------------- |
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33 | || ABILITAZIONE MOS8563 (VDC, WAIT -> WV) |
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34 | || CICLO READ |
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35 | || VR1 = (VDCA & WV & RW & PHI2) |
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36 | || VR2 = (VDCA & WV' & RW & EN2) |
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37 | || VR1 = (VDCA & WV & RW) |
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38 | || VR2 = (VDCA & WV' & RW) |
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39 | || VR1 = (VDCA & WV & RW & PHI2 & S1) |
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40 | | VR1 = (VDCA & WV & RW & PHI2) |
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41 | | VR2 = (VDCA & WV' & RW & EN2) |
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42 | || VR3 = (VDCA & WV & RW & PHI0 & S1') |
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43 | |||
44 | || CICLO WRITE SINCRONIZZATO CON PHI2 (S0 = 1) |
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45 | | VW1 = (VDCA & WV & RW' & PHI2 & S0) |
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46 | | VW2 = (VDCA & WV' & RW' & EN2) |
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47 | || CICLO WRITE SINCRONIZZATO CON PHI0 (S0 = 0) |
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48 | || VW3 = (VDCA & WV & RW' & PHI0 & S0') |
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49 | || VW4 = (VDCA & WV' & RW' & EN0 & S0') |
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50 | | VW3 = (VDCA & WV & RW' & PHI0 & S0') |
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51 | || VW4 = (VDCA & WV' & RW' & EN2 & S0') |
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52 | || |
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53 | || ABILITAZIONE VDC |
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54 | || VDCB = (VR1 # VR2 # VR3 # VW1 # VW2 # VW3) |
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55 | | VDCB = (VR1 # VR2 # VW1 # VW2 # VW3) |
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56 | || S1 = 1 -> /CS0 QUALIFICATO CON PHI2,EN |
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57 | || CS1 = 1 SE SX = 1 |
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58 | || CS1 = VDCA SE SX = 0 |
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59 | | CS1A = (VDCA & SX') |
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60 | | CS1X = (SX) |
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61 | | CS0 = (VDCB) |
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62 | || CS1 = (CS1A # CS1X) |