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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | - | 1 | || FILE: #9001.PLD |
| 2 | || PROJ: 20130517 |
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| 3 | || PART: G26CV12-#9001 |
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| 4 | || |
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| 5 | || DEV : GAL26CV12 |
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| 6 | || |
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| 7 | || DESC: VIDEO CONTROL |
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| 8 | || |
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| 9 | | |
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| 10 | |GAL26CV12 |
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| 11 | | |
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| 12 | || INPUT |
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| 13 | | 1:CLK, 2:LD, 3:CEI, 4:DEI, 5:HSI, 6:VSI, 8:AT5, 9:CT0, 10:CT1, |
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| 14 | | 11:CT2, 12:CT3, 13:CT6, 14:CT7, 15:D0, 27:F1, 28:F2, |
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| 15 | || OUTPUT |
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| 16 | | 26:HS, 25:VS, 24:EUL, 23:CE, 22:DE, 20:FB, 19:FC, |
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| 17 | | 18:Q0, 17:PS5, 16:- |
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| 18 | | |
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| 19 | | SIGNATURE: "9001 " |
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| 20 | | |
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| 21 | || -------------------------------------------------------- |
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| 22 | | B0 = (D0 & LD') # (Q0 & LD) |
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| 23 | | HSD = (HSI & LD') # (HS & LD) |
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| 24 | | VSD = (VSI & LD') # (VS & LD) |
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| 25 | | CED = (CEI & LD') # (CE & LD) |
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| 26 | || /CT7 ABILITA DISPLAY ENABLE |
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| 27 | | DED = (DEI & LD' & CT7') # (DE & LD) |
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| 28 | || CT6 ABILITA ATTRIBUTO AT5 = UNDER LINE |
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| 29 | | ULD = (AT5 & LD' & CT6) # (EUL & LD) |
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| 30 | || /CT6 ABILITA ATTRIBUTO AT5 = PALETTE ADDRESS PS5 |
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| 31 | | PS5 = (AT5 & CT6') |
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| 32 | || FREQUENZA BLINK CARATTERE (1/32 VSYNC) |
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| 33 | || CT3 INVERTE FREQUENZA |
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| 34 | | FBD = (CT3' & LD' & F2) # (CT3 & LD' & F2') # (LD & FB) |
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| 35 | || FREQUENZA BLINK CURSORE |
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| 36 | || /CT0 -> 1/16 VSYNC -- CT0 -> 1/32 VSYNC |
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| 37 | || CT1 -> INVERTE FREQUENZA BLINK CURSORE |
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| 38 | || CT2 -> ABILITA BLINK CURSORE |
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| 39 | || CT2 = 0 => CURSORE FISSO (se abilitato da CRTC) |
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| 40 | | FL0 = (CT2 & F1' & LD' & F2' & CT1) |
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| 41 | | FL1 = (CT2 & F1' & LD' & CT0' & CT1) |
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| 42 | | FL2 = (CT2 & F1 & LD' & CT0' & CT1') |
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| 43 | | FL3 = (CT2 & LD' & F2' & CT0 & CT1) |
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| 44 | | FL4 = (CT2 & LD' & F2 & CT0 & CT1') |
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| 45 | | FL5 = (LD & FC) |
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| 46 | | FL6 = (CT2' & LD') |
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| 47 | | FCD = (FL0 # FL1 # FL2 # FL3 # FL4 # FL5 # FL6) |
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| 48 | || LOAD DATA |
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| 49 | | Q0 = CLK // B0 |
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| 50 | | HS = CLK // HSD |
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| 51 | | VS = CLK // VSD |
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| 52 | | CE = CLK // CED |
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| 53 | | DE = CLK // DED |
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| 54 | | EUL = CLK // ULD |
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| 55 | | FB = CLK // FBD |
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| 56 | | FC = CLK // FCD |