Lpc2000

Does this also apply to pins which can be used for A/D, even if they 
are used for a different function?

The 213x User Manual says that "analog inputs are always connected to 
their pins, even if the Pin Multiplexing Register assigns them to 
port pins".



--- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@y...> 
wrote:
> 
> 
> Hi Joe,
> 
> ADC input impedance between 20kOhm and 40 kOhm
> Input capacitance 1 pF
> There is no Fifo. Using one of the continuous modes requires 
servicing
> through interrupts before another conversion is done otherwise loss 
of
> data. 
> The ADC is not modeled on the 80C552, it is a new development.
> 
> The ADC on all 3 above mentioned devices is the same though.
> Hope this helps
> 
> Robert
> 
> --- In lpc2000@yahoogroups.com, "phlpcmicro" <joseph.goldburg@a...> 
wrote:
> > 
> > Hi All,
> > 
> > I am looking for block diagrams and operation and suggested usage 
> > detials on the LPC ADCs?
> > 
> > Both the UM and DS are a little light on for detials.
> > 
> > What is the ADC input impedance?
> > 
> > How does the FIFO operate.
> > 
> > Question
> > Is the 2124 and 2114 ADC modeled on the 80C552?
> > 
> > Thanks in advance
> > 
> > Joe.G