Datasheet

Section 16 I
2
C Bus Interface (IIC) (Option)
Rev. 6.00 Mar. 18, 2010 Page 641 of 982
REJ09B0054-0600
Bit Bit Name
Initial
Value R/W Description
2
1
0
BC2
BC1
BC0
0
0
0
R/W
R/W
R/W
Bit Counter 2 to 0
These bits specify the number of bits to be transferred next.
With the I
2
C bus format, the data is transferred with one
addition acknowledge bit. Bit BC2 to BC0 settings should
be made during 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 value
returns to 000 at the end of a data transfer, including the
acknowledge bit.
I
2
C Bus Format Clocked Synchronous Mode
000: 9 bits 000: 8 bits
001: 2 bits 001: 1 bit
010: 3 bits 010: 2 bits
011: 4 bits 011: 3 bits
100: 5 bits 100: 4 bits
101: 6 bits 101: 5 bits
110: 7 bits 110: 6 bits
111: 8 bits 111: 7 bits