Lpc2000

In the process of attaching some SPI peripherals to the chip I ran
into some strange  behaviour.  There are 4 pins to use, SPICLK, MISO,
MOSI and SSCS, First the SSCS pin must be configured as an SPI PIN or
the other parts of the SPI don't work at all, Next the SSCS signal is
not generated, This means that I must use another GPIO as the CS
signal. So now it uses 5 pins - with one more GPIO pin for every SPI
peripheral. 

Using the fastest selection of clocks the output rate is about 12,500
D/A samples a second (each D/A sample requires 2 bytes of data
output). This just about scratches the idea that the chip could
produce medium quality sound output. One channel just barely then if
you want to have analog in on the SPI too then the throughput just
dives. How the heck did they ever think this chip could do modems?

Sobellinni