Renesas H8S/2100 Series Hardware Manual page 527

Bit Bit Name
2 BC2
1 BC1
0 BC0
Initial
Value R/W Description
0 R/W Bit Counter 2 to 0
0 R/W These bits specify the number of bits to be transferred
next. Bit BC2 to BC0 settings should be made during
0 R/W
an interval between transfer frames. If bits BC2 to BC0
are set to a value other than 000, the setting should be
made while the SCL line is low.
The bit counter is initialized to B'000 when a start
condition is detected. The value returns to B'000 at the
end of a data transfer.
2
I
000: 9 bits
001: 2 bits
010: 3 bits
011: 4 bits
100: 5 bits
101: 6 bits
110: 7 bits
111: 8 bits
C Bus Format Clocked Synchronous Serial Mode
000: 8 bits
001: 1 bits
010: 2 bits
011: 3 bits
100: 4 bits
101: 5 bits
110: 6 bits
111: 7 bits
Rev. 1.00 May 09, 2008 Page 501 of 954
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Section 17 I C Bus Interface (IIC)
REJ09B0462-0100