SPC560P54x datasheet(25/105 Pages) STMICROELECTRONICS

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SPC56xP54x, SPC56xP60x

Introduction

104

It implements the following features:



Double buffered trigger generation unit with up to eight independent triggers generated

from external triggers



Trigger generation unit configurable in sequential mode or in triggered mode



Each Trigger can be appropriately delayed to compensate the delay of external low

pass filter



Double buffered global trigger unit allowing eTimer synchronization and/or ADC

command generation



Double buffered ADC command list pointers to minimize ADC-trigger unit update



Double buffered ADC conversion command list with up to 24 ADC commands



Each trigger has the capability to generate consecutive commands



ADC conversion command allows to control ADC channel from each ADC, single or

synchronous sampling, independent result queue selection

1.5.26

Cyclic redundancy check (CRC)



3 contexts for the concurrent CRC computation



Separate CRC engine for each context



Zero-wait states during the CRC computation (pipeline scheme)



3 hard-wired polynomials (CRC-8 VDA CAN, CRC-32 Ethernet and CRC-16-CCITT)



Support for byte/half-word/word width of the input data stream



Support for expected and actual CRC comparison

1.5.27

Nexus development interface (NDI)

The NDI block provides real-time development support capabilities for the

SPC56xP54x/SPC56xP60x Power Architecture based MCU in compliance with the IEEE-

ISTO 5001-2003 standard. This development support is supplied for MCUs without requiring

external address and data pins for internal visibility. The NDI block is an integration of

several individual Nexus blocks that are selected to provide the development support

interface for this device. The NDI block interfaces to the host processor and internal buses

to provide development support as per the IEEE-ISTO 5001-2003 Class 2+ standard. The

development support provided includes access to the MCU’s internal memory map and

access to the processor’s internal registers during run time.

The Nexus Interface provides the following features:



Configured via the IEEE 1149.1



All Nexus port pins operate at VDDIO (no dedicated power supply)



Nexus 2+ features supported

–

Static debug

–

Watchpoint messaging

–

Ownership trace messaging

–

Program trace messaging

–

Real time read/write of any internally memory mapped resources through JTAG

pins

–

Overrun control, which selects whether to stall before Nexus overruns or keep

executing and allow overwrite of information

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