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OrCAD LOGIC COMPILER v2.01 N 12/09/94 (Source file .\PLD\#0203A.PLD)
1 || FILE: #0203.PLD
2 || PROJ: 20120601
3 || PART: G26CV12-#0203
4 ||
5 || DEV : GAL26CV12
6 ||
7 || DESC: MASTER DECODER - NEW BUS BOARD
8 ||
9 |
10 |GAL26CV12
11 |
12 || INPUT
13 | 1:A9, 2:A10, 3:A11, 4:A12, 5:A13, 6:A14, 8:A15, 9:A16, 10:A17,
14 | 11:A18, 12:A19, 13:A20, 14:A21, 15:A22, 16:A23, 17:VMA, 18:HIM,
15 | 25:SW0, 26:SW1, 27:S0, 28:S1,
16 || OUTPUT
17 | 19:CEE, 20:CS0, 22:CSR, 23:CSF, 24:CSE
18 |
19 | ACTIVE-LOW: CEE, CS0, CSR, CSF, CSE
20 |
21 |
22 | SIGNATURE: "00203 "
23 |
24 || MAP
25 || CS0 - RAM BANK $00
26 || CSR - RAM BANK $F0
27 || CSF - FLASH BANK $F0
28 || CSE - EEROM BANK $F0
29 || CEE - EMU8U BANK $F0
30 ||
31 || MAP $00FE00 - $00FFFF IF HIM = 0
32 || --------------------------------------
33 || SW0 SW1 TYPE SIGNAL
34 || 0 X FLASH CSF
35 || 1 0 EEROM CSE
36 || 1 1 EMU8U CEE
37 ||
38 || MAP $00FE00 - $00FFFF IF HIM = 1
39 || --------------------------------------
40 || SW0 SW1 TYPE SIGNAL
41 || X X RAM BANK $00 CS0
42 ||
43 || MAP BANK $F0 : $F00000 - $F0FFFF
44 || --------------------------------------
45 || S1 S0 TYPE SIGNAL
46 || 0 0 RAM bank $F0 CSR
47 || 0 1 FLASH CSF
48 || 1 0 EEROM CSE
49 || 1 1 EMU8U CEE
50 ||
51 || --------------------------------------------------------
52 ||
53 || BANK $00 : $000000 - $00FFFF
54 | BANK0 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16' & VMA')
55 ||
56 || 32K BLOCK
57 | RB0 = (BANK0 & A15' )
58 || 16K BLOCK
59 | RB1 = (BANK0 & A15 & A14' )
60 || 8K BLOCK
61 | RB2 = (BANK0 & A15 & A14 & A13' )
62 || 4K BLOCK
63 | RB3 = (BANK0 & A15 & A14 & A13 & A12' )
64 || 2K BLOCK
65 | RB4 = (BANK0 & A15 & A14 & A13 & A12 & A11' )
66 || 1K BLOCK
67 | RB5 = (BANK0 & A15 & A14 & A13 & A12 & A11 & A10')
68 || 512 BYTES BLOCK $00FC00 - $00FDFF RESERVED FOR I/O
69 || RB6 = (BANK0 & A15 & A14 & A13 & A12 & A11 & A10 & A9')
70 ||
71 || LAST 512 BYTES BLOCK ($00FE00 - $00FFFF) ONLY IF HIM=1
72 | RB7 = (BANK0 & A15 & A14 & A13 & A12 & A11 & A10 & A9 & HIM)
73 ||
74 || BANK $00 RAM SELECT
75 | CS0A = (RB0 # RB1 # RB2 # RB3 # RB4 # RB5 # RB7)
76 ||
77 || BANK $01 : $010000 - $01FFFF
78 | BANK1 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16 & VMA')
79 ||
80 || 16K BLOCK $010000 - $013FFF RESERVED FOR EXTERNAL RAM
81 || BR0 = (BANK1 & A15' & A14')
82 || 16K BLOCK $014000 - $017FFF
83 | BR1 = (BANK1 & A15' & A14)
84 || 32K BLOCK $018000 - $01FFFF
85 | BR2 = (BANK1 & A15)
86 ||
87 || BANK $01 RAM SELECT
88 | CS0B = (BR1 # BR2)
89 ||
90 || BANK $02 & $03 : $020000 - $03FFFF (128K BLOK)
91 | CS0C = (A23' & A22' & A21' & A20' & A19' & A18' & A17 & VMA')
92 ||
93 || BANK $03 - $07 : $040000 - $07FFFF (256K BLOK)
94 | CS0D = (A23' & A22' & A21' & A20' & A19' & A18 & VMA')
95 ||
96 || BANK $00 - $07 RAM SELECTION (512K BLOCK)
97 | CS0 = (CS0A # CS0B # CS0C # CS0D)
98 ||
99 || --------------------------------------------------------
100 ||
101 || BANKF0: $F00000 - $F7FFFF
102 | BANKF0 = (A23 & A22 & A21 & A20 & A19' & VMA')
103 ||
104 || LAST 512 BYTES BLOCK ON BANK $00 ($00FE00 - $00FFFF) ONLY IF HIM=0
105 | BR7 = (BANK0 & A15 & A14 & A13 & A12 & A11 & A10 & A9 & HIM')
106 || BR7 MAPPED TO FLASH IF SW0=0
107 | BR7F = BR7 & SW0'
108 || BR7 MAPPED TO EEROM IF SW0=1 & SW1=1
109 | BR7E = BR7 & SW0 & SW1
110 || BR7 MAPPED TO EMU8U IF SW0=1 & SW1=0
111 | BR7U = BR7 & SW0 & SW1'
112 || BANK $F0 MAPPED TO FLASH IF S0=1 & S1=0
113 | BF0F = BANKF0 & S0 & S1'
114 || BANK $F0 MAPPED TO EEROM IF S0=0 & S1=1
115 | BF0E = BANKF0 & S0' & S1
116 || BANK $F0 MAPPED TO EMU8U IF S0=1 & S1=1
117 | BF0U = BANKF0 & S0 & S1
118 || BANK $F0 MAPPED TO RAM IF S0=0 & S1=0
119 | BF0R = BANKF0 & S0' & S1'
120 |
121 | CSR = BF0R
122 | CSF = (BF0F # BR7F)
123 | CSE = (BF0E # BR7E)
124 | CEE = (BF0U # BR7U)
I200 No fatal errors found in source code (logic phase).
I201 No warnings.
I202 1/29/18 5:29 pm (Monday)
I203 Memory usage 116K
I204 Elapsed time 1 second
OrCAD DEVICE FITTER v2.01 12/09/94 (Source file .\PLD\#0203A.PLA)
RESOLVED EXPRESSIONS (Reduction 0)
Signal name Row Terms
CS0 62 A9 A10 A11 A12 A13 A14 A15 A16' A17' A18' A19'
A20' A21' A22' A23' VMA' HIM
63 A10' A11 A12 A13 A14 A15 A16' A17' A18' A19' A20'
A21' A22' A23' VMA'
64 A11' A12 A13 A14 A15 A16' A17' A18' A19' A20' A21'
A22' A23' VMA'
65 A12' A13 A14 A15 A16' A17' A18' A19' A20' A21' A22'
A23' VMA'
66 A13' A14 A15 A16' A17' A18' A19' A20' A21' A22' A23'
VMA'
67 A14' A15 A16' A17' A18' A19' A20' A21' A22' A23' VMA'
68 A14 A15' A16 A17' A18' A19' A20' A21' A22' A23' VMA'
69 A15' A16' A17' A18' A19' A20' A21' A22' A23' VMA'
70 A15 A16 A17' A18' A19' A20' A21' A22' A23' VMA'
71 A17 A18' A19' A20' A21' A22' A23' VMA'
72 A18 A19' A20' A21' A22' A23' VMA'
CSR 49 A19' A20 A21 A22 A23 VMA' S0' S1'
CSF 38 A9 A10 A11 A12 A13 A14 A15 A16' A17' A18' A19'
A20' A21' A22' A23' VMA' HIM' SW0'
39 A19' A20 A21 A22 A23 VMA' S0 S1'
CSE 29 A9 A10 A11 A12 A13 A14 A15 A16' A17' A18' A19'
A20' A21' A22' A23' VMA' HIM' SW0 SW1
30 A19' A20 A21 A22 A23 VMA' S0' S1
CEE 75 A9 A10 A11 A12 A13 A14 A15 A16' A17' A18' A19'
A20' A21' A22' A23' VMA' HIM' SW0 SW1'
76 A19' A20 A21 A22 A23 VMA' S0 S1
SIGNAL ASSIGNMENT
Rows
Pin Signal name Column -------------- Activity
Beg Avail Used
1. A9 0 - - - High (Clock)
2. A10 4 - - - High
3. A11 8 - - - High
4. A12 12 - - - High
5. A13 16 - - - High
6. A14 20 - - - High
8. A15 24 - - - High
9. A16 28 - - - High
10. A17 32 - - - High
11. A18 36 - - - High
12. A19 40 - - - High
13. A20 44 - - - High
14. A21 48 - - - High
15. A22 50 112 9 0 High (Registered)
16. A23 46 103 9 0 High (Registered)
17. VMA 42 94 9 0 High (Registered)
18. HIM 38 85 9 0 High (Registered)
19. CEE 35 74 11 2 Low (Three-state)
20. CS0 31 61 13 11 Low (Three-state)
22. CSR 27 48 13 1 Low (Three-state)
23. CSF 23 37 11 2 Low (Three-state)
24. CSE 19 28 9 2 Low (Three-state)
25. SW0 14 19 9 0 High (Registered)
26. SW1 10 10 9 0 High (Registered)
27. S0 6 1 9 0 High (Registered)
28. S1 2 - - - High
29. - - 0 1 0
30. - - 121 1 0
---- ----
122 18 (15%)
I200 No fatal errors found in source code (device phase).
I201 No warnings.
OrCAD DEVICE
Type: GAL26CV12
*
QP28* QF6432* QV1024*
F0*
L1456 1111111111111111111111111111111111111111111111111111*
L1508 0111011101010101011101110111101110111010101010101010*
L1560 1101111011111111111111111111111111111111101001010101*
L1924 1111111111111111111111111111111111111111111111111111*
L1976 0111011101110110011101110111101110111010101010101010*
L2028 1110110111111111111111111111111111111111101001010101*
L2496 1111111111111111111111111111111111111111111111111111*
L2548 1110111011111111111111111111111111111111101001010101*
L3172 1111111111111111111111111111111111111111111111111111*
L3224 0111011101110111011101110111101110111001101010101010*
L3276 1111101101110111011101110111101110111011101010101010*
L3328 1111111110110111011101110111101110111011101010101010*
L3380 1111111111111011011101110111101110111011101010101010*
L3432 1111111111111111101101110111101110111011101010101010*
L3484 1111111111111111111110110111101110111011101010101010*
L3536 1111111111111111111101111011011110111011101010101010*
L3588 1111111111111111111111111011101110111011101010101010*
L3640 1111111111111111111111110111011110111011101010101010*
L3692 1111111111111111111111111111111101111011101010101010*
L3744 1111111111111111111111111111111111110111101010101010*
L3848 1111111111111111111111111111111111111111111111111111*
L3900 0111011101100101011101110111101110111010101010101010*
L3952 1101110111111111111111111111111111111111101001010101*
L6344 1111110101010101111111110011000000110000001100100011*
L6396 000000110011001000000010000000100000*
C7F7D*
I202 1/29/18 5:29 pm (Monday)
I203 Memory usage 11K
I204 Elapsed time 1 second