H83664 Datasheet, PDF (274/444 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

Section 15 I²C Bus Interface (IIC)
Initial
Bit
Bit Name Value R/W Description
5
IRTR
0
R/W I²C Bus Interface Continuous Transmission/Reception
Interrupt Request Flag
[Setting conditions]
In I²C bus interface slave mode
• When the TDRE or RDRF flag is set to 1 when
AASX = 1
In I²C bus interface other modes
• When the TDRE or RDRF flag is set to 1
[Clearing conditions]
• When 0 is written in IRTR after reading IRTR = 1
• When the IRIC flag is cleared to 0
4
AASX
0
R/W Second Slave Address Recognition Flag
[Setting condition]
When the second slave address is detected in slave
receive mode and FSX = 0
[Clearing conditions]
• When 0 is written in AASX after reading AASX = 1
• When a start condition is detected
• In master mode
3
AL
0
R/W Arbitration Lost
[Setting condition]
When bus arbitration was lost in master mode.
[Clearing conditions]
• When 0 is written in AL after reading AL = 1
• When ICDR data is written (transmit mode) or read
(receive mode)
Rev. 6.00 Mar. 24, 2006 Page 246 of 412
REJ09B0142-0600