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Do the I/O buffer of SDA and SDL terminals need to valid for IIC function?

Latest Updated:12/25/2008

Question:

Do the I/O buffer of SDA and SDL terminals need to be valid for IIC function?

Answer:

I/O port input buffer control register (ICR) needs to be valid. If you use it as an input pin of peripheral module, set the corresponded bit to 1. If you don't use it as an input pin or if you write the bit corresponded to analog input pin, write the initial value.
Suitable Products
H8SX/1668R, H8SX/1668M
H8SX/1663
H8SX/1658R, H8SX/1658M
H8SX/1653
H8SX/1648G, H8SX/1648H
H8SX/1648A, H8SX/1648L
H8SX/1638, H8SX/1638L
H8SX/1622
H8SX/1568
H8SX/1558
H8SX/1544
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