Datasheet

Section 16 I
2
C Bus Interface (IIC) (Option)
Rev. 6.00 Mar. 18, 2010 Page 651 of 982
REJ09B0054-0600
Bit Bit Name
Initial
Value R/W Description
1 ADZ 0 R/(W)
*
General Call Address Recognition Flag
In I
2
C bus format slave receive mode, this flag is set to 1 if
the first frame following a start condition is the general call
address (H'00).
[Setting condition]
When the general call address (one frame including a R/W
bit is H'00) is detected in slave receive mode and (FS = 0 or
FSX = 0)
[Clearing conditions]
• When ICDR is written to (transmit mode) or read from
(receive mode)
• When 0 is written in ADZ after reading ADZ = 1
• In master mode
If a general call address is detected while FS = 1 and FSX =
0, the ADZ flag is set to 1; however, the general call address
is not recognized (AAS flag is not set to 1).