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Renesas Electronics Europe - Knowledgebase

When using SCI on the H8/300H Tiny, why did the data transmit twice?

Latest Updated:03/18/2009


When using the SCI on the H8/300H Tiny - it is transmitting data twice. Why is this ?


Although the Tiny has a 300H core the SCI is a 300L peripheral. This means that the transmit data register empty flag does not nead to be cleared to transmit data (transmission is automatic) therefore clearing this flag causes a second transmission
Suitable Products
H8/300H Tiny