RX610 Group
22. I
2
C Bus Interface (RIIC)
R01UH0032EJ0120 Rev.1.20
Page 771 of 1006
Feb 20, 2013
22.14 Reset States
The RIIC has chip reset, RIIC reset, and internal reset functions. Table 22.8 shows the scope of each reset and reset
conditions.
Table 22.8 Reset Conditions
Chip Reset
RIIC Reset
(ICE = 0, IICRST = 1)
Internal Reset
(ICE = 1, IICRST = 1)
Start Condition/
Restart Condition
Detection
Stop Condition
Detection
ICCR1
ICE,
IICRST
At a reset
Retained
Retained
Operation (retained)
Operation (retained)
SCLO,
SDAO
At a reset
At a reset
Others
Retained
ICCR2
BBSY
At a reset
At a reset
Operation
Operation
Operation
ST
At a reset
At a reset
Operation (retained)
Others
At a reset
ICMR1
BC[2:0]
At a reset
At a reset
At a reset
At a reset
Operation (retained)
Others
Retained
Operation (retained)
ICMR2
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICMR3
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICFER
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICSER
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICIER
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICSR1
At a reset
At a reset
At a reset
Operation (retained)
At a reset
ICSR2
TDRE,
TEND
At a reset
At a reset
At a reset
Operation (retained)
At a reset
START
Operation
STOP
Operation (retained)
Operation
Others
Operation (retained)
SARL0 to SARL2
SARU0 to SARU2
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICBRH, ICBRL
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICDRT
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICDRR
At a reset
At a reset
Retained
Operation (retained)
Operation (retained)
ICDRS
At a reset
At a reset
At a reset
Operation (retained)
Operation (retained)
Timeout detection
function
At a reset
At a reset
Operation
Operation
Operation
Bus free time
measurement
At a reset
At a reset
Operation
Operation
Operation