SH7751 Datasheet, PDF (392/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

11. Realtime Clock (RTC)
Initialization
Abbrevia-
Power-On Manual Standby Initial
Name tion
R/W Reset Reset Mode Value
Area 7
P4 Address Address
Access
Size
Month RMONCNT R/W Counts
counter
Counts
Counts Undefined H'FFC80018 H'1FC80018 8
Year RYRCNT
counter
Second RSECAR
alarm
register
R/W Counts Counts
R/W Initialized*¹ Held
Counts Undefined H'FFC8001C H'1FC8001C 16
Held
Undefined*¹ H'FFC80020 H'1FC80020 8
Minute RMINAR
alarm
register
Hour RHRAR
alarm
register
R/W Initialized*¹ Held
R/W Initialized*¹ Held
Held
Undefined*¹ H'FFC80024 H'1FC80024 8
Held
Undefined*¹ H'FFC80028 H'1FC80028 8
Day-of-
week
alarm
register
RWKAR
Day RDAYAR
alarm
register
Month RMONAR
alarm
register
R/W
R/W
R/W
Initialized*¹ Held
Initialized*¹ Held
Initialized*¹ Held
Held
Undefined*¹ H'FFC8002C H'1FC8002C 8
Held
Undefined*¹ H'FFC80030 H'1FC80030 8
Held
Undefined*¹ H'FFC80034 H'1FC80034 8
RTC RCR1
control
register 1
RTC RCR2
control
register 2
R/W Initialized Initialized Held
H'00*³
R/W Initialized Initialized*² Held
H'09*⁴
H'FFC80038 H'1FC80038 8
H'FFC8003C H'1FC8003C 8
RTC
control
register
3*⁵
RCR3
R/W Initialized Held
Held H'00
H'FFC80050 H'1FC80050 8
Year RYRAR
alarm
register*⁵
R/W Held
Held
Held Undefined H'FFC80054 H'1FC80054 16
Notes: 1. The ENB bit in each register is initialized.
2. Bits other than the RTCEN bit and START bit are initialized.
3. The value of the CF bit and AF bit is undefined.
4. The value of the PEF bit is undefined.
5. SH7751R only
Rev.4.00 Oct. 10, 2008 Page 294 of 1122
REJ09B0370-0400