PRCM
Real Time Clock
timer_intr_pend
c32khz_clk
RTC32KCLK
alarm_intr_pend
rtc_resselect
rtc_osc_pwrdn
Device
clk_sel
0
1
RTC Pads
RTC_PORZ
EXT_WAKEUP
PMIC_POWER_EN
ext_wakeup0
ext_wakeup1
ext_wakeup2
ext_wakeup3
32k_clk
32k_aux_clk
rtc_por_arst_n
pmic_pwr_enable
rtc_x32k_sw1
rtc_x32k_sw2
OSC1_IN
OSC1_OUT
slvp_alarm_SWakeup
slvp_timer_SWakeup
WakeM3
rtcss_intr_pend
RTC Analog
RTC_SS
ENZ_KALDO_1P8V
CAP_VDD_RTC
VDDS_RTC
Async
Bridge
MPU Subsystem
WakeM3
32K
Osc
L4 Wakeup
Interconnect
RTC_SS
20.3.2 Integration
This device includes a Real-Time Clock Subsystem (RTCSS) module to allow easy tracking of time and
date and the generation of real time alarms.
The integration of the RTC is shown in
.
Figure 20-55. RTC Integration
20.3.2.1 RTC Connectivity Attributes
The general connectivity for the RTC module in the device is shown in
.
Table 20-56. RTC Module Connectivity Attributes
Attributes
Type
Power Domain
RTC
Clock Domain
PD_RTC_L4_RTC_GCLK (Interface/OCP)
PD_RTC_RTC32KCLK (Func)
CLK_32K_RTC (Func)
Reset Signals
RTC_DOM_RST_N
Idle/Wakeup Signals
Smart Idle/Wakeup
Interrupt Requests
4 Interrupts
Alarm interrupt to MPU Subsystem (RTCINT) and WakeM3
Timer interrupt to MPU Subsystem (RTCALARMINT) and
WakeM3
Alarm wakeup to WakeM3
Timer wakeup to WakeM3
DMA Requests
None
Physical Address
L4 Wakeup slave port
3622Timers
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated