RX21A_15 Datasheet, PDF (53/132 Pages) Renesas Technology Corp – Renesas MCUs

RX21A Group
4. I/O Registers
Table 4.1
List of I/O Registers (Address Order) (22 / 24)
Address
Module
Symbol
0008 C298h SYSTEM
0008 C29Ah SYSTEM
0008 C29Bh SYSTEM
0008 C2A0h to SYSTEM
0008 C2BFh
0008 C400h RTC
0008 C402h RTC
Register Name
Voltage detection level select register
Voltage monitoring 1 circuit/comparator A1 control register 0
Voltage monitoring 2 circuit/comparator A2 control register 0
Deep standby backup register 0 to 31
64-Hz counter
Second counter/Binary counter 0
0008 C404h RTC
Minute counter/Binary counter 1
0008 C406h RTC
Hour counter/Binary counter 2
0008 C408h RTC
Day-of-week counter/Binary counter 3
0008 C40Ah
0008 C40Ch
0008 C40Eh
0008 C410h
RTC
RTC
RTC
RTC
Date counter
Month counter
Year counter
Second alarm register/Binary counter 0 alarm register
0008 C412h RTC
Minute alarm register/Binary counter 1 alarm register
0008 C414h RTC
Hour alarm register/Binary counter 2 alarm register
0008 C416h RTC
Day-of-week alarm register/Binary counter 3 alarm register
0008 C418h RTC
Date alarm register/Binary counter 0 alarm enable register
0008 C41Ah RTC
Month alarm register/Binary counter 1 alarm enable register
0008 C41Ch RTC
Year alarm register/Binary counter 2 alarm enable register
0008 C41Eh RTC
0008 C422h
0008 C424h
0008 C426h
0008 C42Eh
0008 C440h
0008 C442h
0008 C444h
0008 C452h
RTC
RTC
RTC
RTC
RTC
RTC
RTC
RTC
Year alarm enable register/Binary counter 3 alarm enable
register
RTC control register 1
RTC control register 2
RTC control register 3
Time error adjustment register
Time capture control register 0
Time capture control register 1
Time capture control register 2
Second capture register 0/BCNT0 capture register 0
0008 C454h RTC
Minute capture register 0/BCNT1 capture register 0
0008 C456h RTC
Hour capture register 0/BCNT2 capture register 0
0008 C45Ah RTC
Date capture register 0/BCNT3 capture register 0
0008 C45Ch
0008 C462h
RTC
RTC
Month capture register 0
Second capture register 1/BCNT0 capture register 1
0008 C464h RTC
Minute capture register 1/BCNT1 capture register 1
0008 C466h RTC
Hour capture register 1/BCNT2 capture register 1
0008 C46Ah RTC
Date capture register 1/BCNT3 capture register 1
0008 C46Ch
0008 C472h
RTC
RTC
Month capture register 1
Second capture register 2/BCNT0 capture register 2
Register
Symbol
LVDLVLR
LVD1CR0
LVD2CR0
DPSBKR0 to
DPSBKR31
R64CNT
RSECCNT/
BCNT0
RMINCNT/
BCNT1
RHRCNT/
BCNT2
RWKCNT/
BCNT3
RDAYCNT
RMONCNT
RYRCNT
RSECAR/
BCNT0AR
RMINAR/
BCNT1AR
RHRAR/
BCNT2AR
RWKAR/
BCNT3AR
RDAYAR/
BCNT0AER
RMONAR/
BCNT1AER
RYRAR/
BCNT2AER
RYRAREN/
BCNT3AER
RCR1
RCR2
RCR3
RADJ
RTCCR0
RTCCR1
RTCCR2
RSECCP0/
BCNT0CP0
RMINCP0/
BCNT1CP0
RHRCP0/
BCNT2CP0
RDAYCP0/
BCNT3CP0
RMONCP0
RSECCP1/
BCNT0CP1
RMINCP1/
BCNT1CP1
RHRCP1/
BCNT2CP1
RDAYCP1/
BCNT3CP1
RMONCP1
RSECCP2/
BCNT0CP2
Number of Access Cycles
Number Access ICLK 
of Bits Size
PCLK
ICLK <
PCLK
8
8
4, 5 PCLKB
2, 3 ICLK
8
8
4, 5 PCLKB
2, 3 ICLK
8
8
4, 5 PCLKB
2, 3 ICLK
8
8
4, 5 PCLKB
2, 3 ICLK
8
8
8
8
2, 3 PCLKB
2, 3 PCLKB
2 ICLK
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
8
8
16
16
8
8
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2 ICLK
2 ICLK
2 ICLK
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
16
16
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2, 3 PCLKB
2 ICLK
2 ICLK
2 ICLK
2 ICLK
2 ICLK
2 ICLK
2 ICLK
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
8
8
2, 3 PCLKB
2, 3 PCLKB
2 ICLK
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
2, 3 PCLKB
2 ICLK
8
8
8
8
2, 3 PCLKB
2, 3 PCLKB
2 ICLK
2 ICLK
R01DS0129EJ0110 Rev.1.10
Aug 28, 2014
Page 53 of 132