mpc5632m Freescale Semiconductor, Inc, mpc5632m Datasheet - Page 18

• Manufacturer Part Number: mpc5632m
• Description: Mpc5634m Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Overview
1.3.11
The BAM (Boot Assist Module) is a block of read-only memory that is programmed once by Freescale and is identical for all
MPC5634M MCUs. The BAM program is executed every time the MCU is powered-on or reset in normal mode. The BAM
supports different modes of booting. They are:
The BAM also reads the reset configuration half word (RCHW) from internal flash memory and configures the MPC5634M
hardware accordingly. The BAM provides the following features:
1.3.12
The eMIOS (Enhanced Modular Input Output System) module provides the functionality to generate or measuretime events.
The channels on this module provide a range of operating modes including the capability to perform dual input capture or dual
output compare as well as PWM output.
The eMIOS provides the following features:
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Byte, halfword, word and doubleword addressable
ECC performs single-bit correction, double-bit detection on 32-bit data element
Booting from internal flash memory
Serial boot loading (A program is downloaded into RAM via eSCI or the FlexCAN and then executed)
Booting from external memory on calibration bus
Sets up MMU to cover all resources and mapping all physical address to logical addresses with minimum address
translation
Sets up the MMU to allow user boot code to execute as either Classic PowerPC Book E code (default) or as Freescale
VLE code
Detection of user boot code
Automatic switch to serial boot mode if internal flash is blank or invalid
Supports user programmable 64-bit password protection for serial boot mode
Supports serial bootloading via FlexCAN bus and eSCI using Freescale protocol
Supports serial bootloading via FlexCAN bus and eSCI with auto baud rate sensing
Supports serial bootloading of either Classic Power Architecture Book E code (default) or Freescale VLE code
Supports booting from calibration bus interface
Supports censorship protection for internal flash memory
Provides an option to enable the core watchdog timer
Provides an option to disable the system watchdog timer
16 channels
For compatibility with other family members selected channels and timebases are implemented:
— Channels 0 to 6, 8 to 15, and 23
— Timebases A, B and C
Channels 1, 3, 5 and 6 support modes:
— General Purpose Input/Output (GPIO)
— Single Action Input Capture (SAIC)
— Single Action Output Compare (SAOC)
Channels 2, 4, 11 and 13 support all the modes above plus:
— Output Pulse Width Modulation Buffered (OPWMB)
Channels 0, 8, 9, 10, 12, 14, 15, 23 support all the modes above plus:
— Input Period Measurement (IPM)
BAM
eMIOS
Preliminary—Subject to Change Without Notice
MPC5634M Microcontroller Data Sheet, Rev. 3
Freescale Semiconductor