Performance difference between SCC(Internal UART) and 16C554A (External UART)

Hi all,

If I connect a serial device to our MCP855T Processor based customized board
, these is performance difference between Internal UART (SCC) and external
UART (16C554A) , the External UART performance is better than the internal
UART .

what could be the problem , How can I make the Internal UART work with
better performance.

Thanks in advance

Regards,
KP


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Can you be more specific about what you mean by 'better performance' ?

Mark Chambers

If I connect a serial device to our MCP855T Processor based customized

board

, these is performance difference between Internal UART (SCC) and external
UART (16C554A) , the External UART performance is better than the internal
UART .

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/