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Application NoteNxp

Initialization and Optimization Program for MPC563xM

Application note detailing initialization and optimization procedures for MPC563xM microcontrollers, focusing on performance enhancement for internal flash execution.

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Overview

This application note provides systematic procedures for initializing and optimizing NXP MPC563xM microcontrollers (including MPC5632M, MPC5633M, and MPC5634M). It covers critical startup configurations such as the Reset Configuration Half Word (RCHW), Memory Management Unit (MMU) setup, and internal SRAM initialization. The document emphasizes performance optimization for 'ROMRUN' mode (executing code from internal flash) by detailing how to enable the Branch Target Buffer (BTB), the Signal Processing Extension (SPE), and flash page buffers. It also provides guidelines for configuring flash wait states based on operating frequency and uses the Dhrystone 2.0 benchmark to illustrate system performance impacts.

Use Cases

  • Developing boot sequences and reset configuration for MPC563xM devices.
  • Optimizing system performance for applications executing from internal flash memory.
  • Enabling specialized core features like the Signal Processing Extension (SPE) and Branch Target Buffer (BTB).
  • Configuring memory controllers and wait states for high-frequency operation in automotive embedded systems.

Topics

MPC563xM
MPC5634M
MPC5633M
MPC5632M
Initialization
Optimization
Flash Memory
RCHW
MMU
BTB
SPE
SRAM

Referenced Parts

MPC5632M

NXP

Table 1 shows the different flash blocks available in the different MPC563xM devices. ... MPC5632M (768K)

MPC5633M

NXP

Table 1 shows the different flash blocks available in the different MPC563xM devices. ... MPC5633M (1M)

MPC5634M

NXP

Table 1 shows the different flash blocks available in the different MPC563xM devices. ... MPC5634M (1.5M)

MPC5634

NXP

The MPC5634 device includes 94 KB of general-purpose SRAM.

Initialization and Optimization Program for MPC563xM | Design Resources