Hi Folks!

I am searching in all Texas documentation but I am not finding this
information:
When the DSP C5510 is in reset(during reset) I would like to know the
state pins...

Could someone inform me something about this?

Thanks in advance.

Alexandre-

> I am searching in all Texas documentation but I am not finding this
> information:
> When the DSP C5510 is in reset(during reset) I would like to know the
> state pins...

Can you clarify what you mean by "state pins"?  Do you mean some specific pins (if
so
which ones?), or do you mean the "state of" chip signals?

If the latter, then:

  -I think many pins are floating (tri-state) when
   the chip is held in reset, but not sure

  -you can easily check this by looking at the 5510
   data sheet, which has a detailed table describing
   each pin, including function, direction (I/O/Z),
   and status during Reset

-Jeff

Alexandre-

> State pins means logical level of them(0,1 or three-state).
> I would like to know about all the pins of C5510.
> I think many pins are floating (tri-state) when the chip is held in
> reset, but not sure too, and there is not documentation about this.
> The TI don't have some information.

You're kidding me, right?  In the C5510 data sheet:

  http://focus.ti.com/lit/ds/sprs076n/sprs076n.pdf

in section 5.9 Reset Timings (pg 65), there is clearly information about state of all
pins when the device is held in Reset.

I think you need to spend some time with that data sheet -- take it with you
everywhere, sleep with it.  You need to know that data sheet backwards and forwards
-- every detail -- for your project to succeed.

-Jeff

> --- In c...@yahoogroups.com, Jeff Brower <jbrower@...> wrote:
> >
> > Alexandre-
> >
> > > I am searching in all Texas documentation but I am not finding this
> > > information:
> > > When the DSP C5510 is in reset(during reset) I would like to know the
> > > state pins...
> >
> > Can you clarify what you mean by "state pins"?  Do you mean some
> specific pins (if so
> > which ones?), or do you mean the "state of" chip signals?
> >
> > If the latter, then:
> >
> >   -I think many pins are floating (tri-state) when
> >    the chip is held in reset, but not sure
> >
> >   -you can easily check this by looking at the 5510
> >    data sheet, which has a detailed table describing
> >    each pin, including function, direction (I/O/Z),
> >    and status during Reset
> >
> > -Jeff
> >

Alexandre-

> Look the answer from TI Support:

TI Tech support needs to read their own data sheet.  As far as I know with TI DSPs
(back to 1984), TI data sheets always say which lines are high, low, and floating
during Reset.  It's not a big deal.

-Jeff

> ___________________________________________________________________
> From: s...@ti.com
> Sent: 4/30/2007 03:00:03 PM
> To: a...@digitro.com.br
> Subject: RE: C5510 Pins on reset
> 
> Alexandre,
> 
> Thank you for your inquiry to TI.  The Service Request# 1-525202737 has been
> assigned to your issue.  Please use this number in reference with any other
> inquiries you may have in regards to this issue.
> 
> Unfortunately, there isn't anything documented or any information we can provide
> you on this.  The reason for this is the DSP is in an unknown state while it is in
> reset.  Therefore each pin is in an unknown state.
> 
> The only known state of the DSP is once it is brought out of reset.  I do apologize
> for any inconvenience this may cause you.
> 
> Please let me know if this information resolves your issue or if you need further
> assistance.
> 
> I will be looking forward to hearing back from you.
> 
> ___________________________________________________________________
> 
> Did you see? So...
> Technical Support is for this. Is for to confuse us...:-)
> 
> But, whatever I thank you.
> 
> Regards
> 
> Alexandre
> 
> somelse
> 
> Jeff Brower escreveu:
> 
> > Alexandre-
> >
> >
> >
> >> State pins means logical level of them(0,1 or three-state).
> >> I would like to know about all the pins of C5510.
> >> I think many pins are floating (tri-state) when the chip is held in
> >> reset, but not sure too, and there is not documentation about this.
> >> The TI don't have some information.
> >>
> >>
> > You're kidding me, right?  In the C5510 data sheet:
> >
> >   http://focus.ti.com/lit/ds/sprs076n/sprs076n.pdf
> >
> > in section 5.9 Reset Timings (pg 65), there is clearly information about state of
> > all
> > pins when the device is held in Reset.
> >
> > I think you need to spend some time with that data sheet -- take it with you
> > everywhere, sleep with it.  You need to know that data sheet backwards and
> > forwards
> > -- every detail -- for your project to succeed.
> >
> > -Jeff
> >
> >
> >
> >> --- In c...@yahoogroups.com, Jeff Brower <jbrower@...> wrote:
> >>
> >>
> >> > Alexandre-
> >> >
> >> >
> >> >
> >> >>  I am searching in all Texas documentation but I am not finding this
> >> >>  information:
> >> >>  When the DSP C5510 is in reset(during reset) I would like to know the
> >> >>  state pins...
> >> >>
> >> >>
> >> > Can you clarify what you mean by "state pins"?  Do you mean some
> >> >
> >> >
> >> specific pins (if so
> >>
> >>
> >> > which ones?), or do you mean the "state of" chip signals?
> >> >
> >> > If the latter, then:
> >> >
> >> >   -I think many pins are floating (tri-state) when
> >> >    the chip is held in reset, but not sure
> >> >
> >> >   -you can easily check this by looking at the 5510
> >> >    data sheet, which has a detailed table describing
> >> >    each pin, including function, direction (I/O/Z),
> >> >    and status during Reset
> >> >
> >> > -Jeff
> >> >
> >> >
> >> >
> >
> >
> > --
> 
> Alexandre Guglielmi
> Engenheiro
> DDT - PSN - Produtos e Serviços Networking
> 
> DÍGITRO TECNOLOGIA
> E-mail: a...@digitro.com.br
> Fone: +55 48 3281-7000 Ramal: 7658
> Fax: +55 48 3281-7299
> Site: www.digitro.com

  
  


Jeff!



You are a funny guy!



Look the answer from TI Support:

___________________________________________________________________

From: s...@ti.com

Sent: 4/30/2007 03:00:03 PM

To: a...@digitro.com.br

Subject: RE: C5510 Pins on reset




Alexandre,
 
Thank you for your inquiry to TI.  The
Service Request# 1-525202737 has been assigned to your issue.  Please use this number in reference with any other
inquiries you may have in regards to this issue.
 
Unfortunately, there isn't anything documented or any
information we can provide you on this.  The
reason for this is the DSP is in an unknown state while it is in reset.  Therefore each pin is in an unknown state.  
 
The only known state of the DSP is once it is brought
out of reset.  I do apologize for any
inconvenience this may cause you.
 
Please let me know if this information resolves your
issue or if you need further assistance. 
 
I will be looking forward to hearing back from you.
___________________________________________________________________




Did you see? So...

Technical Support is for this. Is for to confuse us...:-)




But, whatever I thank you.







Regards




Alexandre





somelse







Jeff Brower escreveu:

  
Alexandre-

  
  

    
State pins means logical level of them(0,1 or three-state).
I would like to know about all the pins of C5510.
I think many pins are floating (tri-state) when the chip is held in
reset, but not sure too, and there is not documentation about this.
The TI don't have some information.
    
  
  

You're kidding me, right?  In the C5510 data sheet:

  http://focus.ti.com/lit/ds/sprs076n/spr
s076n.pdf

in section 5.9 Reset Timings (pg 65), there is clearly information about state of all
pins when the device is held in Reset.

I think you need to spend some time with that data sheet -- take it with you
everywhere, sleep with it.  You need to know that data sheet backwards and forwards
-- every detail -- for your project to succeed.

-Jeff

  
  

    
--- In c...@yahoogroups.com, Jeff Brower <jbrower@...> wrote:
    
    

      
Alexandre-

      
      

        
I am searching in all Texas documentation but I am not finding this
information:
When the DSP C5510 is in reset(during reset) I would like to know the
state pins...
        
      
      
Can you clarify what you mean by "state pins"?  Do you mean some
      
    
    
specific pins (if so
    
    

      
which ones?), or do you mean the "state of" chip signals?

If the latter, then:

  -I think many pins are floating (tri-state) when
   the chip is held in reset, but not sure

  -you can easily check this by looking at the 5510
   data sheet, which has a detailed table describing
   each pin, including function, direction (I/O/Z),
   and status during Reset

-Jeff

      
    
  
  


  





-- 






Alexandre Guglielmi

Engenheiro

DDT - PSN - Produtos e Serviços Networking



DÍGITRO TECNOLOGIA

E-mail:
a...@digitro.com.br

Fone:
+55 48 3281-7000 Ramal: 7658

Fax:
+55 48 3281-7299

Site:
www.digitro.com


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