LFEBS12UB Freescale Semiconductor, LFEBS12UB Datasheet - Page 655

Manufacturer Part Number

KIT STUDENT LEARNING S12 DG128

Manufacturer

Freescale Semiconductor

Architecture

Code Gen Tools Included

Code Warrior

Silicon Manufacturer

Core Architecture

Core Sub-architecture

Silicon Core Number

Silicon Family Name

Kit Contents

HCS12 DG128 Learning Kit

Rohs Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

The WAI instruction puts the MCU in a low power consumption stand-by mode. If the CSWAI bit is set,

additional power can be saved in power down mode because the CPU clocks are stopped. After leaving

this power down mode, the MSCAN restarts and enters normal mode again.

While the CPU is in wait mode, the MSCAN can be operated in normal mode and generate interrupts

(registers can be accessed via background debug mode).

The STOP instruction puts the MCU in a low power consumption stand-by mode. In stop mode, the

MSCAN is set in power down mode regardless of the value of the SLPRQ/SLPAK and CSWAI bits

This is a non-power-saving mode. Enabling the MSCAN puts the module from disabled mode into normal

mode. In this mode the module can either be in initialization mode or out of initialization mode. See

Section 16.4.4.5, “MSCAN Initialization

Freescale Semiconductor

1. ‘X’ means don’t care.

Operation in Run Mode

Operation in Wait Mode

Operation in Stop Mode

MSCAN Normal Mode

16-38, only MSCAN sleep mode is available as low power option when the CPU is in

Table 16-38. CPU vs. MSCAN Operating Modes

MC9S12XE-Family Reference Manual Rev. 1.23

Chapter 16 Freescale’s Scalable Controller Area Network (S12MSCANV3)

Reduced Power Consumption