Datasheet

Section 21 I
2
C Bus Interface 2 (IIC2)
Page 740 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
TIE bit (transmit interrupt enable)
When the TDRE bit in ICSR is set to 1, this bit enables or disables the transmit data empty
interrupt (TXI).
TEIE bit (transmit end interrupt enable)
This bit enables or disables the transmit end interrupt (TEI) at the rising of the ninth clock
while the TDRE bit in ICSR is 1. TEI can be canceled by clearing the TEND bit or the TEIE
bit to 0.
RIE bit (receive interrupt enable)
This bit enables or disables the receive data full interrupt request (RXI) when a receive data is
transferred from ICDRS to ICDRR and the RDRF bit in ICSR is set to 1. RXI can be canceled
by clearing the RDRF or RIE bit to 0.
NAKIE bit (NACK receive interrupt enable)
This bit enables or disables the NACK receive interrupt request (NAKI) and the overrun error
(setting of the OVE bit in ICSR) interrupt request (ERI) with the clock synchronous format,
when the NACKF and AL bits in ICSR are set to 1. NAKI can be canceled by clearing the
NACKF, OVE, or NAKIE bit to 0.
STIE bit (stop condition detection interrupt enable)
This bet should be set to 1 while the STOP bit in ICSR is 0.
ACKBR bit (receive acknowledge)
In transmit mode, this bit stores the acknowledge data that are returned by the receive device.
This bit cannot be modified.
ACKBT bit (transmit acknowledge)
In receive mode, this bit specifies the bit to be sent at the acknowledge timing.