Filter
Top Products
Section 14 Realtime Clock
Page 698 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
14.3.19 Control Register 5 (RCR5)
When the RCKSEL bit is set to 0, the RTC_X1 clock pulses are counted; and when the RCKSEL
bit is set to 1, the EXTAL clock pulses are counted to implement the clock function.
76543210
Bit:
Initial value:
R/W:
0000000
Undefined
RRRRRRRR/W
-------
RCKSEL
Bit Bit Name
Initial
Value R/W Description
7 to 1 All 0 R Reserved
These bits are always read as 0. The write value should
always be 0.
0 RCKSEL Undefined R/W Operation clock select
Operation clock can be selected from either RTC_X1 or
EXTAL.
The setting of this bit should not be switched during
operation.
0: Selects RTC_X1.
1: Selects EXTAL.