Datasheet

Section 16 I
2
C Bus Interface [Option]
Rev. 4.00 Sep 27, 2006 page 515 of 1130
REJ09B0327-0400
Bit 2
AAS Description
0 Slave address or general call address not recognized (Initial value)
[Clearing conditions]
1. When ICDR data is written (transmit mode) or read (receive mode)
2. When 0 is written in AAS after reading AAS = 1
3. In master mode
1 Slave address or general call address recognized
[Setting condition]
When the slave address or general call address is detected in slave receive mode while
FS = 0
Bit 1—General Call Address Recognition Flag (ADZ): 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).
ADZ is cleared by reading ADZ after it has been set to 1, then writing 0 in ADZ. In addition, ADZ
is reset automatically by write access to ICDR in transmit mode, or read access to ICDR in receive
mode.
Bit 1
ADZ Description
0 General call address not recognized (Initial value)
[Clearing conditions]
1. When ICDR data is written (transmit mode) or read (receive mode)
2. When 0 is written in ADZ after reading ADZ = 1
3. In master mode
1 General call address recognized
[Setting condition]
When the general call address is detected in slave receive mode while FSX = 0 or FS = 0