HD6433682 ETC, HD6433682 Datasheet - Page 327

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

17.3.6
SAR selects the communication format and sets the slave address. When the chip is in slave mode
with the I
received after a start condition, the chip operates as the slave device.
Bit
1
0
Bit
7 to 1
0
Bit Name
AAS
ADZ
Bit Name
SVA6 to
SVA0
FS
2
Slave Address Register (SAR)
C bus format, if the upper 7 bits of SAR match the upper 7 bits of the first frame
Initial
Value
0
Initial
Value
All 0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Description
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]
General Call Address Recognition Flag
This bit is valid in I
[Setting condition]
[Clearing conditions]
Description
Slave Address 6 to 0
These bits set a unique address in bits SVA6 to SVA0,
differing form the addresses of other slave devices
connected to the I
Format Select
0: I
1: Clocked synchronous serial format is selected.
Slave Address Recognition Flag
2
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 in AAS after reading AAS=1
When the general call address is detected in slave
receive mode
When 0 is written in ADZ after reading ADZ=1
C bus format is selected.
2
2
C bus.
C bus format slave receive mode.
Rev. 3.00, 05/03, page 297 of 472