HD64F2638F20J Datasheet, PDF (621/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 15 I²C Bus Interface [Option]
(Only for the H8S/2638, H8S/2639, and H8S/2630)
Bit 2
AAS
0
1
Description
Slave address or general call address not recognized
[Clearing conditions]
(Initial value)
• When ICDR data is written (transmit mode) or read (receive mode)
• When 0 is written in AAS after reading AAS = 1
• In master mode
Slave address or general call address recognized
[Setting condition]
• When the slave address or general call address is detected in slave receive mode
and FS = 0
Bit 1—General Call Address Recognition Flag (ADZ): In I²C 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
0
1
Description
General call address not recognized
[Clearing conditions]
(Initial value)
• When ICDR data is written (transmit mode) or read (receive mode)
• When 0 is written in ADZ after reading ADZ = 1
• In master mode
General call address recognized
[Setting condition]
• When the general call address is detected in slave receive mode and (FSX = 0 or
FS = 0)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 571 of 1458