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VC5504 UART

Mushtaq Syed56993
Intellectual 750 points

Hi:

I have programmed the VC5504 UART in the fifo mode with a trigger level of 1 byte with receive interrupt enabled. I run the code then bring up Hyperterminal and connect (9600, 8 bits, 1 stop, no flow). Then I enter a character through Hyperterminal. At this I get the uart interrupt. When I examine the IIR register its contents are 0x00CC. This indicates a "Character time interrupt." This is incorrect! It should be 0x00C4 since a character was just received. Could you please help?

Thanks a lot.

Cheers,

Mushaq