tmp89fm42 TOSHIBA Semiconductor CORPORATION, tmp89fm42 Datasheet - Page 275

• Manufacturer Part Number: tmp89fm42
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA001
18. Serial Bus Interface (SBI)
18.1 Communication Format
18.1.1 I
nization and arbitration functions, and supports the multi-master in which multiple masters are connected on a bus. It
also supports the unique free data format.
The TMP89FM42 contains 1 channels of serial bus interface (SBI).
The serial bus interface supports serial communication conforming to the I
devices.
slave(s) connected to the bus, and transmits and receives data.
data.
dards:
The I
Communications are implemented between a master and slave.
The master transmits the start condition, the slave addresses, the direction bit and the stop condition to the
The slave detects these conditions transmitted from the master by the hardware, and transmits and receives
The data format of the I
The serial bus interface does not support the following functions among those specified by the I
2
C bus
1. Start byte
2. 10-bit addressing
3. SDA and SCL pins falling edge slope control
2
C bus is connected to devices via the SDA0 and SCL0 pins and can communicate with multiple
Device 1
SDA
SCL
VDD
2
C bus that can communicate via the serial bus interface is shown in Figure 18-2.
Figure 18-1 Device Connections
Device 2
SDA
SCL
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2
Device n
C bus standards. It has clock synchro-
SDA
SCL
TMP89FM42
2
C bus stan-