UPD78F1502AGK-GAK-AX Datasheet, PDF (627/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 15 SERIAL INTERFACE IICA
Use the following flows to perform the processing to release the STOP mode other than by an interrupt request
(INTIICA) generated from serial interface IICA.
• Master device operation: Flow shown in Figure 15-24
• Slave device operation: Same as the flow in Figure 15-23
Figure 15-24. When Operating as Master Device after Releasing STOP Mode other than by INTIICA
START
SPIE = 1
WUP = 1
STOP instruction
STOP mode state
Releasing STOP mode Releases STOP mode by an interrupt other than INTIICA.
WUP = 0
INTIICA = 1?
Yes
Wait
No
Generates a STOP condition or selects
as a slave device.
Waits for 5 clocks.
Reading IICS
Executes processing corresponding to the operation to be executed
after checking the operation state of serial interface IICA.
R01UH0004EJ0501 Rev.5.01
611
Jun 20, 2011