Originally posted by paulsantangelo:
Well I messed that up
Here it is again hopefully formated better
This first one we already worked on..
pin........Binary
.......Bit7......0
0.........10000011
1.........00000111
2.........00001110
3.........00011100
4.........00111000
5.........01110000
6.........11100000
7.........11000001
This is for the second chip
Pin......... Binary code
.......Bit9........0
0.........1111111111
1.........1111111110
2.........1111111100
3.........1111111000
4.........1111110000
5.........1111100000
6.........1111000000
7.........1110000000
8.........1100000000
9.........1000000000
Hi Paul,
The two GALs reflect your table above. The 'pin0-(7)9' is the same as 'IP0-(7)9' and the 'bit0-(7)9' is the same as 'OP0-(7)9'. The (7) is for gal1.
In the equations, like 'OP1 = IP0 + IP1', the OP1 equal IP0 OR IP1. In plain language, if either of the two inputs are 'on' the output is 'on'. If both are 'off' the output is 'off'. The different outputs are not connected to each other in any way, only to the '0' and '1' states of the inputs listed in the equation for that output.
I hope this is what you wanted from your table? Pleas note that you must 'turn' your tables 90 deg to the left to get the outputs to the left as in the equations.
The equation for IP0 = all OPs, is the topmost line in your table. This is because IP0 is in all the equations:
Code: Select all
OP0 = IP0
OP1 = IP0 + IP1
OP2 = IP0 + IP1 + IP2
OP3 = IP0 + IP1 + IP2 + IP3
OP4 = IP0 + IP1 + IP2 + IP3 + IP4
OP5 = IP0 + IP1 + IP2 + IP3 + IP4 + IP5
OP6 = IP0 + IP1 + IP2 + IP3 + IP4 + IP5 + IP6
OP7 = IP0 + IP1 + IP2 + IP3 + IP4 + IP5 + IP6 + IP7
OP8 = IP0 + IP1 + IP2 + IP3 + IP4 + IP5 + IP6 + IP7 + IP8
OP9 = IP0 + IP1 + IP2 + IP3 + IP4 + IP5 + IP6 + IP7 + IP8 + IP9
TOK
<small>[ November 12, 2005, 07:53 AM: Message edited by: Gorgon ]</small>