SH7261 Datasheet, PDF (673/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 15 Realtime Clock (RTC)
15.2 Input/Output Pin
Table 15.1 shows the RTC pin configuration.
Table 15.1 Pin Configuration
Name
RTC oscillator crystal pin
Abbreviation
RTC_X1
RTC oscillator crystal pin RTC_X2
I/O
Input
Output
Description
Connects 32.768-kHz crystal resonator
for RTC
Connects 32.768-kHz crystal resonator
for RTC
15.3 Register Descriptions
The RTC has the following registers.
Table 15.2 Register Configuration
Register Name
Abbreviation R/W
64-Hz counter
R64CNT
R
Second counter
RSECCNT
R/W
Minute counter
RMINCNT
R/W
Hour counter
RHRCNT
R/W
Day of week counter
RWKCNT
R/W
Date counter
RDAYCNT
R/W
Month counter
RMONCNT
R/W
Year counter
RYRCNT
R/W
Second alarm register
RSECAR
R/W
Minute alarm register
RMINAR
R/W
Hour alarm register
RHRAR
R/W
Day of week alarm register RWKAR
R/W
Date alarm register
RDAYAR
R/W
Month alarm register
RMONAR
R/W
Year alarm register
RYRAR
R/W
Initial Value
H'xx
H'xx
H'xx
H'xx
H'0x
H'xx
H'xx
H'xxxx
H'xx
H'xx
H'xx
H'0x
H'xx
H'xx
H'xxxx
Address
H'FFFE0800
H'FFFE0802
H'FFFE0804
H'FFFE0806
H'FFFE0808
H'FFFE080A
H'FFFE080C
H'FFFE080E
H'FFFE0810
H'FFFE0812
H'FFFE0814
H'FFFE0816
H'FFFE0818
H'FFFE081A
H'FFFE0820
Access
Size
8
8
8
8
8
8
8
16
8
8
8
8
8
8
16
Rev. 2.00 Sep. 07, 2007 Page 641 of 1312
REJ09B0320-0200