SN32F760 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 132
Version 2.0
11.5 RTC REGISTERS
Base Address: 0x4001 2000
11.5.1 RTC Control register (RTC_CTRL)
Address offset: 0x00
Note: RTCEN bit shall be set at last!
Bit
Name
Description
Attribute
Reset
31:1
Reserved
R
0
0
RTCEN
RTC enable bit
0: Disable
1: Enable. Reset SEC_CNT and ALM_CNT.
R/W
0
11.5.2 RTC Clock Source Select register (RTC_CLKS)
Address offset: 0x04
Note: SW shall disable RTC (RTCEN=0) when changing the value of this register.
Bit
Name
Description
Attribute
Reset
31:2
Reserved
R
0
1:0
CLKSEL[1:0]
RTC clock source selection.
HW will reset SEC_CNT and ALM_CNT when changing the value.
00: ILRC
01: ELS X’TAL
10: Reserved
11: EHS X’TAL clock / 128
R/W
0
11.5.3 RTC Interrupt Enable register (RTC_IE)
Address offset: 0x08
Bit
Name
Description
Attribute
Reset
31:3
Reserved
R
0
2
OVFIE
Overflow interrupt enable
0: Disable
1: Enable
R/W
0
1
ALMIE
Alarm interrupt enable
0: Disable
1: Enable
R/W
0
0
SECIE
Second interrupt enable
0: Disable
1: Enable
R/W
0
11.5.4 RTC Raw Interrupt Status register (RTC_RIS)
Address offset: 0x0C