MPC 5 xx

Freescale MPC 561 MCU

Processors in the MPC 5 xxfamily, for exampleMPC 555andMPC 565are architectural.

table of contents

Overview

It operates at 40 to 66. · It is often used for automobiles such as transmission controllers. These are composed of embedded peripheral interface and none, large on-chip, very large delay on-chip which also reaches 1, meaning that it is adapted to control applications. Because of this strange configuration, the MPC 5xx is generally considered. Instead of block address translation where the hardware translates fixed page addresses, as defined by the first PowerPC specification, the MPC 5 xx core provides a software address translation mechanism that supports variable page sizes. This address translation model is the foundation of the embedded model of the Power instruction set specification.

MPC 5xx\ - All PowerPC 5xx series processors have this name.

The development of the PowerPC 5xx series has been terminated because it became more popular for more flexible and powerful.

Characteristic

Although the peripheral device interface varies depending on the model, it is often equipped with (ADC), time processor unit (TPU) ,, / (QSMCM). The MPC 5 xx family is MPC 8 xx It is the successor to the family, which means that it adopts the single core of. Unlike the MPC 8 xx family, the MPC 5 xx family is equipped. Early chips such as MPC 509 have, but recent chips have a large amount of onboard that can burst access instructions from the processor. Flash memories require a large area of ​​the die and raise the price of the chip, so some low cost chips omit it. Many controller applications have a data set that is not very large and a very long control loop with little delay. In this case direct access to data and instructions becomes important. If most data can be stored in an on-chip SRAM that the processor can access in one clock, the performance will be very good. If you need frequent access to data external to the chip, the chip will not be burst accessible from the external RAM and performance will be degraded because it uses a very slow access protocol. This chip is popular not only for automotive and industrial equipment but also for hobby because it is a simple memory interface which can be programmed by deciding the default memory address and writing some base register.

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Post Date : 2018-02-23 06:30

This article is taken from the Japanese Wikipedia MPC 5 xx

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