HD64F3664BPV Datasheet, PDF (277/446 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 15 I²C Bus Interface (IIC)
Initial
Bit
Bit Name Value R/W Description
2
AAS
0
R/W Slave Address Recognition Flag
[Setting condition]
When the slave address or general call address is
detected in slave receive mode and FS = 0.
[Clearing conditions]
• When ICDR data is written (transmit mode) or read
(receive mode)
• When 0 is written in AAS after reading AAS = 1
• In master mode
1
ADZ
0
R/W General Call Address Recognition Flag
This bit is valid in I²C bus format slave receive mode.
[Setting condition]
When the general call address is detected in slave
receive mode and FSX = 0 or FS = 0.
[Clearing conditions]
• When ICDR data is written (transmit mode) or read
(receive mode)
• When 0 is written in ADZ after reading ADZ = 1
• In master mode
0
ACKB
0
R/W Acknowledge Bit
In transmit mode, the acknowledge data that are
returned by the receive device is loaded. In receive
mode, the acknowledge data originally specified to this
bit is sent to the transmit device, after receiving data.
When this bit is read, the loaded value (return value
from the receive device) is read at transmission and the
specified value is read at reception.
Rev. 6.00 Mar. 24, 2006 Page 247 of 412
REJ09B0142-0600