PXD10RM Datasheet, PDF (1084/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

4-16 MHz
FXOSC
16 MHz FIRC
128 kHz SIRC
32 kHz
SXOSC
RTCCNT
sync
22:31
APIVAL
+
APIEN
reset
22:31
offset reg
load
==
sync
32-bit counter
reset
10:21
==
RTCVAL
APIF
APIIE
sync
sync
RTCF
RTCIE
ROVRF
RTCIE
ROVREN
Figure 31-1. RTC/API block diagram
API wakeup
API
interrupt
RTC wakeup
RTC interrupt
31-2
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor