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vaf20
Joined: 27 Jan 2003
Posts: 173
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 23 Oct 2004 7:31 cpld-4 |
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hi
who agree with following method :
"CPLDs are well suited to complex,high-performance state machines."
i have doubt b/w FPGA and CPLD to implement a design as a typical control unit.
my design's control unit include large state machine ONLY.
any comment or help
gracias
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eda_wiz
Joined: 07 Nov 2001
Posts: 720
Helped: 30
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07 Nov 2004 15:24 cpld state machine |
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I doubt whether CPLDs have any specific advantages over FPGAs on implementing statemachines.. where did you get that comment??
Last edited by eda_wiz on 06 Apr 2006 15:16; edited 1 time in total |
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qixie
Joined: 20 Nov 2004
Posts: 4
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20 Nov 2004 16:40 cpld state machine |
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| I think use CPLD to implement state machine may be more simple than FPGA,because you may not add constraints
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eltonjohn
Joined: 22 Feb 2002
Posts: 1751
Helped: 28
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20 Nov 2004 17:31 state machines cpld |
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I THINK THAT THIS STATEMENT ABOUT " PERFORMANCE OF CPLD BASED STATE MACHINES " WAS TRUE 10 YEARS AGO .. Where the EPLD were much FASTER THAN FPGA .. i'm talking of a 7ns Tpd .. So there was a COMPETITION to produce
FAST Elpd to control BIG PROCESSOR BUSES .. no FPGAs were considered for this USE ALONE .. they were too SLOW !
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vaf20
Joined: 27 Jan 2003
Posts: 173
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21 Nov 2004 7:39 Re: CPLD 4 state machine |
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tnx friends
i want to know for visualization ONLY the biggest state machin can be implement on xilinx CPLD !? what the bigest xilinx CPLD -industrial and commertial- ?
gracias
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