r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 682

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 16 I
Rev. 1.00 Sep. 21, 2007 Page 656 of 1124
REJ09B0402-0100
Bit
2
1
Bit Name
AL/OVE
AAS
2
C Bus Interface 2 (I
Initial
Value
0
0
2
C2)
R/W
R/W
R/W
Description
Arbitration Lost Flag/Overrun Error Flag
This flag indicates that arbitration was lost in master
mode with the I
been received while RDRF = 1 with the clock
synchronous format.
When two or more master devices attempt to seize the
bus at nearly the same time, if the I
detects data differing from the data it sent, it sets AL to
1 to indicate that the bus has been occupied by another
master.
[Setting conditions]
•
•
•
[Clearing condition]
•
Slave Address Recognition Flag
In slave receive mode, this flag is set to 1 if the first
frame following a start condition matches bits SVA6 to
SVA0 in SAR.
[Setting conditions]
•
•
[Clearing condition]
•
If the internal SDA and SDA pin disagree at the rise
of SCL in master transmit mode
When the SDA pin outputs high in master mode
while a start condition is detected
When the final bit is received with the clock
synchronous format while RDRF = 1
When 0 is written to AL/OVE after reading AL/OVE
= 1
When the slave address is detected in slave receive
mode
When the general call address is detected in slave
receive mode.
When 0 is written to AAS after reading AAS=1
2
C bus format and that the final bit has
2
C bus interface 2