SH7713 Datasheet, PDF (549/904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 15 Realtime Clock (RTC)
RSECCNT is an 8-bit readable/writable register and not initialized by a power-on reset or manual
reset, or in standby mode.
Bit
7
6 to 4
3 to 0
Bit Name

Initial Value R/W
0
R


R/W


R/W
Description
Reserved
This bit is always read as 0. The write value
should always be 0.
Counter for 10-unit of second in the BCD-code.
The range can be set from 0 to 5 (decimal).
Counter for 1-unit of second in the BCD-code.
The range can be set from 0 to 9 (decimal).
15.3.3 Minute Counter (RMINCNT)
RMINCNT is used for setting/counting in the BCD-coded minute section. The count operation is
performed by a carry for each minute of the second counter.
The range of minute can be set is 0 to 59 (decimal). Errant operation will result if any other value
is set. Carry out write processing after stopping the count operation with the START bit in RCR2.
RMINCNT is an 8-bit readable/writable register and not initialized by a power-on reset or manual
reset, or in standby mode.
Bit
7
6 to 4
3 to 0
Bit Name

Initial Value R/W
0
R


R/W


R/W
Description
Reserved
This bit is always read as 0.The write value
should always be 0.
Counter for 10-unit of minute in the BCD-code.
The range can be set from 0 to 5 (decimal).
Counter for 1-unit of minute in the BCD-code.
The range can be set from 0 to 9 (decimal).
15.3.4 Hour Counter (RHRCNT)
RHRCNT is used for setting/counting in the BCD-coded hour section. The count operation is
performed by a carry for each 1 hour of the minute counter.
Rev.1.50 Aug. 30, 2006 Page 509 of 860
REJ09B0288-0150