PXN20RM Datasheet, PDF (134/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

Clocks, Reset, and Power (CRP)
16 MHz
IRC
128 kHz
IRC
32 kHz
XTAL
4 – 40
MHz XTAL
BIU
CRP
LOW
POWER
FSM
INPUT
ISOLATION
WAKEUP,
POWER
STATUS
CLOCKS,
RESET
CONTROL
RTC /
API
POWER
SWITCHES
ISOLATION
LOGIC
SYSTEM
CLOCK
CLOCK
CONTROL
BLOCK
FMPLL
VREG
SEA-OF-GATES
LOGIC
RAM
IP
BLOCKS
Figure 6-1. CRP Block Diagram
6.1.2 Features
The CRP has these major features:
• Real-time clock/autonomous periodic interrupt (RTC/API):
— 32-bit counter
PXN20 Microcontroller Reference Manual, Rev. 1
6-2
Freescale Semiconductor