eTPUArchive: Enhanced Time Processor Unit Archive ARCHIVED

Overview

The eTPU is a programmable I/O controller with its own core and memory system, allowing it to perform complex timing and I/O management independently of the CPU. The eTPU is essentially an independent microcontroller designed for timing control, I/O handling, serial communications, motor control and engine control applications.

The eTPU is an enhanced version of the TPU module implemented on the MC68332 and MPC500 products. Enhancements of the eTPU include a more powerful processor, which handles high-level C code efficiently and allows for more functionality and increased performance.

NXP^® provides an eTPU functions library that is a superset of the standard TPU library functions. These, along with an available C compiler, make it relatively easy to port older applications to the eTPU. By providing source code of the eTPU library, developers are able to create customized functions for specific applications.

eTPU Functions Library
Set 1 General	Set 2 Automotive	Set 3 DC Motors	Set 4 AC Motors
Pulse Width Modulations	Some Set 1 Functions	Some Set 1 Functions	Some Set 1 Functions
Input Capture	Angle Clock	Speed Controller	Speed Controller
Output Compare	Cam Decode	Quadrature Decoder	Quadrature Decoder
Pulse & Frequency Measurement	Fuel Control	Hall Decoder	Hall Decoder
Pulse/Period Accumulate	Spark Control	Motor Control PWM Generator	Motor Control PWM Generator
Stepper Motor	Angle Pulse	Analog Current Sensing	Analog Sensing and Current Processing
Queued Output Match		Current Controller	ACIM V/Hz
General Purpose I/O			PMSM Vector Control
SPI			ACIM Vector Control
UART
Synchronized PWM

LEGAL DISCLAIMER: The entire eTPU library is currently in alpha release and not fully production tested. Please select the "Subscribe for Updates" button at the top of this page to receive all updates to this page, which will include library updates.

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Features

Event triggered RISC like processor and timer subsystem
Up to 32 channels per module, with the possibility of multiple modules per device
Double Action hardware timer channels (Input Capture/Output Compare)
24-bit hardware timer resolution
Up to 64K bytes of code memory and 4K bytes data memory (actual amount implemented varies by product)
Flexible allocation of data memory per function
Angle mode support (provide angle reference for engine and motor control applications
DMA and interrupt request support
Debug support

General Timing Functions Available:
Full Featured and Synchronized PWM, Input Capture/Output Compare (Protected Output Compare), Pulse and Frequency Measurement, Pulse/Period Accumulate, Stepper Motor, Queued Output Match for Complex Outputs, GPIO

Communication Functions Available:
SPI, UART, UART with Flow Control, plus Proprietary Protocols

Motor Control Functions Available:
Stepper Motor, DC Motor, Brushless DC Motor, Permanent Magnet Synchronous Motor and AC Induction Motor (including speed control), Current Control, Vector Control techniques

Engine Control Functions Available:
Engine Position, Spark and Dwell Time, Angle Toggle, Speed Measurement, Knock Window, Angle Toggle

MoreLess

Features

Event triggered RISC like processor and timer subsystem
Up to 32 channels per module, with the possibility of multiple modules per device
Double Action hardware timer channels (Input Capture/Output Compare)
24-bit hardware timer resolution
Up to 64K bytes of code memory and 4K bytes data memory (actual amount implemented varies by product)
Flexible allocation of data memory per function
Angle mode support (provide angle reference for engine and motor control applications
DMA and interrupt request support
Debug support

General Timing Functions Available:
Full Featured and Synchronized PWM, Input Capture/Output Compare (Protected Output Compare), Pulse and Frequency Measurement, Pulse/Period Accumulate, Stepper Motor, Queued Output Match for Complex Outputs, GPIO

Communication Functions Available:
SPI, UART, UART with Flow Control, plus Proprietary Protocols

Motor Control Functions Available:
Stepper Motor, DC Motor, Brushless DC Motor, Permanent Magnet Synchronous Motor and AC Induction Motor (including speed control), Current Control, Vector Control techniques

Engine Control Functions Available:
Engine Position, Spark and Dwell Time, Angle Toggle, Speed Measurement, Knock Window, Angle Toggle

Application Notes

Enhanced Time Processor Unit

Enhanced Time Processor Unit

Enhanced Time Processor Unit

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