H838086R Datasheet, PDF (522/697 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Super Low Power Series

Section 21 I²C Bus Interface 2 (IIC2)
Initial
Bit Bit Name Value R/W Description
4
SDAOP
1
R/W SDAO Write Protect
This bit controls change of output level of the SDA pin
by modifying the SDAO bit. To change the output level,
clear SDAO and SDAOP to 0 or set SDAO to 1 and
clear SDAOP to 0 by the MOV instruction. This bit is
always read as 1.
3
SCLO
1
R
This bit monitors SCL output level. When SCLO is 1,
SCL pin outputs high. When SCLO is 0, SCL pin
outputs low.
2

1

Reserved
This bit is always read as 1, and cannot be modified.
1
IICRST
0
R/W IIC Control Part Reset
This bit resets the control part except for I²C registers. If
this bit is set to 1 when hang-up occurs because of
communication failure during I²C operation, I²C control
part can be reset without setting ports and initializing
registers.
0

1

Reserved
This bit is always read as 1, and cannot be modified.
Rev. 3.00 Aug 23, 2006 Page 444 of 616
REJ09B0182-0300