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- PAL20L10 PAL DESIGN SPECIFICATION
- VIDLOG HARRY HUGHES 02/18/81
- VIDEO LOGIC
- MMI ENGLAND
- CB2 CB3 CB4 CB5 CB6 CB7 BK0 BK1 G1 H1 H2 GND
- H4 EN1 R G B X LOAD1 LOAD0 B0 B1 BLK VCC
-
- ; equations go here
-
- IF (VCC) /LOAD0 = /B0* H1* H2* H4
-
- IF (VCC) /LOAD1 = H1* H2* H4* /B1
- + H1* H2* H4* B1* B0
-
- IF (VCC) /EN1 = B1* B0
-
- IF (VCC) /R = CB4* BK1
- + CB2* BK0
-
- IF (VCC) /G = CB5* BK1
- + CB3* BK0
-
- IF (VCC) /B = CB6* BK1
- + /CB2* /CB3* BK0
-
- IF (VCC) /X = CB7* BK1
-
- IF (VCC) /BLK = /G1* /BK1* /BK0
- + /G1* /BK0* /CB4* /CB5* /CB6* /CB7
-
- FUNCTION TABLE
-
- CB2 CB3 CB4 CB5 CB6 CB7 BK0 BK1 G1 H1 H2 H4 B1 B0 EN1 R G B X LOAD1 LOAD0 BLK
- ;CCCCCC -BLANK- E
- ;BBBBBB BLK BLK G HHH BB N R G B X LOAD BLK COMMENTS
- ;234567 0 1 1 124 10 1 1 0
- -------------------------------------------------------------
- XXXXXX X X X HHH HL X X X X X H L X LOAD0
- XXXXXX X X X HHH LL X X X X X L L X LOAD1
- XXXXXX X X X HHH HH L X X X X L H X LOAD1
- XXXXXX X X X LLL HH L X X X X H H X EN1
- XXHXXX X H X XXX XX X L X X X X X X R
- HXXXXX H X X XXX XX X L X X X X X X R
- XXXHXX X H X XXX XX X X L X X X X X G
- XHXXXX H X X XXX XX X X L X X X X X G
- XXXXHX X H X XXX XX X X X L X X X X B
- LLXXXX H X X XXX XX X X X L X X X X B
- XXXXXH X H X XXX XX X X X X L X X X X
- XXXXXX L L L XXX XX X X X X X X X L BLK
- XXLLLL L X L XXX XX X X X X X X X L BLK
- -------------------------------------------------------------
-
- DESCRIPTION
- This pal replaces all of the TTL logic used on a video driver board (5 IC's)
- together with 4 pull-up resistors.
-