Initialization Of Registers And Functions When A Reset Is Issued Or A Condition Is Detected - Renesas RX100 Series User Manual

RX13T Group
24.14 Initialization of Registers and Functions When a Reset is Issued or a Condition is
Detected
The RIIC can be reset by MCU reset, RIIC reset, and internal reset functions. Table 24.7 lists the reset states of registers
and functions when a reset is issued or a condition is detected.
Table 24.7 Reset States of Registers and Functions When a Reset is Issued or a Condition is Detected
ICCR1 ICE, IICRST
SCLO, SDAO
Others
ICCR2 BBSY
ST, RS
TRS, MST
SP
ICMR1 BC[2:0]
Others
ICMR2
ICMR3 ACKBT
Others
ICFER
ICSER
ICIER
ICSR1
ICSR2 TDRE, TEND
START
Others
SARL0, SARL1, SARL2,
SARU0, SARU1, SARU2
ICBRH, ICBRL
ICDRT
ICDRR
ICDRS
Timeout function
Bus free time
measurement
To be reset: Registers and functions are initialized.
Retained: Registers and functions are not initialized, but retained or updated according to the state.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
RIIC Reset
MCU Reset (ICE = 0, IICRST = 1)
To be reset Retained
To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
To be reset To be reset
Start Condition/
Internal Reset Restart Condition
(ICE = 1, IICRST = 1) Detection
Retained Retained
To be reset
Retained
Retained Retained
To be reset To be reset
Retained
To be reset
To be reset To be reset
Retained Retained
Retained Retained
Retained Retained
Retained Retained
Retained Retained
Retained Retained
To be reset Retained
To be reset Retained
Retained Retained
Retained Retained
Retained Retained
Retained Retained
To be reset Retained
To be reset Operation
Operation Operation
2
24. I C-bus Interface (RIICa)
Stop Condition
Detection
Retained
Retained
To be reset
Retained
Retained
To be reset
Retained
Retained
Retained
Retained
To be reset
To be reset
Retained
Retained
Retained
Retained
Retained
Retained
Operation
Operation
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