SH7727 Datasheet, PDF (532/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 16 Realtime Clock (RTC)
16.1.4 RTC Register Configuration
Table 16.2 shows the RTC register configuration.
Table 16.2 RTC Registers
Name
Abbreviation R/W Initial Value
64-Hz counter
R64CNT
R
Undefined
Second counter
RSECCNT R/W Undefined
Minute counter
RMINCNT
R/W Undefined
Hour counter
RHRCNT
R/W Undefined
Day of week counter
RWKCNT
R/W Undefined
Date counter
RDAYCNT R/W Undefined
Month counter
RMONCNT R/W Undefined
Year counter
RYRCNT
R/W Undefined
Second alarm register
RSECAR
R/W Undefined*
Minute alarm register
RMINAR
R/W Undefined*
Hour alarm register
RHRAR
R/W Undefined*
Day of week alarm register RWKAR
R/W Undefined*
Date alarm register
RDAYAR
R/W Undefined*
Month alarm register
RMONAR
R/W Undefined*
RTC control register 1
RCR1
R/W H'00
RTC control register 2
RCR2
R/W H'09
Note: * Only the ENB bit in each register is initialized.
Address
H'FFFFFEC0
H'FFFFFEC2
H'FFFFFEC4
H'FFFFFEC6
H'FFFFFEC8
H'FFFFFECA
H'FFFFFECC
H'FFFFFECE
H'FFFFFED0
H'FFFFFED2
H'FFFFFED4
H'FFFFFED6
H'FFFFFED8
H'FFFFFEDA
H'FFFFFEDC
H'FFFFFEDE
Access Size
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
Rev. 5.00 Dec 12, 2005 page 460 of 1034
REJ09B0254-0500