HD6433694 Datasheet, PDF (259/432 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

Initial
Bit
Bit Name Value R/W Description
1
AAS
0
R/W 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]
• When the slave address is detected in slave receive
mode
• When the general call address is detected in slave
receive mode.
[Clearing condition]
• When 0 is written in AAS after reading AAS=1
0
ADZ
0
R/W General Call Address Recognition Flag
This bit is valid in I²C bus format slave receive mode.
[Setting condition]
• When the general call address is detected in slave
receive mode
[Clearing conditions]
• When 0 is written in ADZ after reading ADZ=1
15.3.6 Slave Address Register (SAR)
SAR selects the communication format and sets the slave address. When the chip is in slave mode
with the I²C bus format, if the upper 7 bits of SAR match the upper 7 bits of the first frame
received after a start condition, the chip operates as the slave device.
Initial
Bit
Bit Name Value R/W Description
7 to 1 SVA6 to All 0
SVA0
R/W 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 I²C bus.
0
FS
0
R/W Format Select
0: I²C bus format is selected.
1: Clocked synchronous serial format is selected.
Rev. 4.00, 03/04, page 231 of 400