UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 500

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

17.6.3 Address
bus lines.
in hardware, and checks whether the 8-bit data matches its own specification number (slave address) in software or
hardware. If the 8-bit data matches the slave address, that slave is selected and thenceforth communicates with the master
until the master orders disconnection.
460
An address is 8-bit data that is output by the master to select a specific slave from among the slaves connected to the
The 8-bit data following a bus release signal and command signal is defined as an address. A slave detects this condition
Transmission address
of slave 2
SCK0
SB0
Bus Release Signal
Master
CHAPTER 17 CLOCKED SERIAL INTERFACE
Figure 17-18 Slave Selection by Address
Command Signal
Figure 17-17 Address
1
A7
2
A6
3
A5
4
Address
A4
Slave 1
Slave 2
Slave 3
Slave 4
5
A3
6
A2
Not Selected
Selected
Not Selected
Not Selected
7
A1
8
A0