Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 760

Bit Bit Name Initial Value R/W
5 RIE 0
4 NAKIE 0
3 STIE 0
2 ACKE 0
1 ACKBR 0
0 ACKBT 0
Rev. 1.0, 09/01, page 716 of 904
Description
R/W Receive interrupt enable
This bit enables or disables the receive data full interrupt
request (RXI) when a received 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.
0: Receive data full interrupt request (RXI) is disabled.
1: Receive data full interrupt request (RXI) is enabled.
R/W NACK receive interrupt enable
This bit enables or disables the NACK receive interrupt
request (NAKI) when the NACKF and AL bits in ICSR are
set to 1. NAKI can be canceled by clearing the NACKF, AL,
or NAKIE bit to 0.
0: NACK receive interrupt request (NAKI) is disabled.
1: NACK receive interrupt request (NAKI) is enabled.
R/W Stop condition detection interrupt enable
0: Stop condition detection interrupt request (STPI) is
disabled.
1: Stop condition detection interrupt request (STPI) is
enabled.
R/W Acknowledge Bit Judgement Select
0: The value of the acknowledge bit is ignored, and
continuous transfer is performed.
1: If the acknowledge bit is 1, continuous transfer is
interrupted.
R Receive acknowledge
In transmit mode, this bit stores the acknowledge data that
are returned by the receive device. This bit cannot be
modified.
0: Receive acknowledge = 0
1: Receive acknowledge = 1
R/W Transmit acknowledge
In receive mode, this bit specifies the bit to be sent at the
acknowledge timing.
0: 0 is sent at the acknowledge timing.
1: 1 is sent at the acknowledge timing.