Device family overview

MPC5602D Microcontroller Product Brief, Rev. 3.1

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

19

3.5.12.3

Real-time counter (RTC)

The RTC features the following:

•

Configurable resolution for different timeout periods

— 1 sec resolution for > 1 hour period

— 1 ms resolution for 2 second period

•

Selectable clock sources

— 128 kHz slow internal RC oscillator

— Divided 16 MHz fast internal RC oscillator

•

Supports continued operation through all resets except POR (power-on reset)

3.5.13

System watchdog timer

The watchdog on the MPC5602D features the following:

•

Activation by software or out of reset

•

32-bit modulus counter

•

Clock source: robust 128 kHz slow internal RC oscillator (divisible by 1 to 32)

•

Supports normal or windowed mode

•

Configurable response on timeout: reset, interrupt, or interrupt followed by reset

•

Reset by writing a software key to memory mapped register

•

Support for protected access to watchdog control registers with optional soft and hard locks

— Soft lock allows temporary locking of configuration

— Once enabled, hard lock prevents any changes until after a reset

•

Supports halting during low power modes

3.5.14

On-chip voltage regulator (VREG)

The on-chip voltage regulator includes the following features:

•

Optional support for internal and external ballast resistor based on power consumption

•

Regulates 3.3 or 5 V ±10% input to generate all internal supplies for internal control

•

Manages power gating

•

Low power regulators support operation when in STOP and STANDBY modes to minimize power

consumption

•

Fast startup on-chip regulators for rapid exit from low power modes

•

Low voltage reset supported on all internal supplies

3.5.15

Analog to Digital Converter Module (ADC)

The ADC features the following:

•

One 12-bit ADC module supporting synchronous conversions on channels