Datasheet
Section 21 I
2
C Bus Interface 2 (IIC2)
Page 742 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Bit Symbol Bit Name Description R/W
5 RDRF Receive data
register full flag
[Setting condition]
• When a receive data is transferred from ICDRS
to ICDRR
[Clearing conditions]
• When 0 is written in RDRF after reading
RDRF = 1
• When ICDRR is read with an instruction
• When the DTC transfers data to ICDRR by an
RXI interrupt request, and the DTC settings
satisfy the flag clearing conditions.
R/W
4 NACKF No acknowledge
detection flag
[Setting condition]
• When no acknowledge is detected from the
receive device in transmission while the ACKE bit
in ICIER is 1
[Clearing condition]
• When 0 is written in NACKF after reading
NACKF = 1
R/W
3 STOP Stop condition
detection flag
[Setting conditions]
• When a stop condition is detected after frame
transfer end
[Clearing condition]
• When 0 is written in STOP after reading
STOP = 1
R/W