UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 499
UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
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17.6.1 Bus Release Signal (REL)
is not being output). This signal is output by the master.
that detects the bus release signal.
17.6.2
is not being output). This signal is output by the master.
The bus release signal is indicated by a low-to-high transition of the SB0 pin when SCK0 is high (when the serial clock
The bus release signal indicates that the master is going to send an address to a slave. The slaves incorporate hardware
The command signal is indicated by a high-to-low transition of the SB0 pin when SCK0 is high (when the serial clock
The slaves incorporate hardware that detects the command signal.
Command Signal (CMD)
CHAPTER 17 CLOCKED SERIAL INTERFACE
Figure 17-15 Bus Release Signal
SCK0
Figure 17-16 Command Signal
SCK0
SB0
SB0
“H”
“H”
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