Copyright © Siemens AG 2016. All rights reserved
6
ERTEC 200P-2 Manual
Technical data subject to change
Version
1.0
Table of contents
1
INTRODUCTION ......................................................................................................... 15
1.1
Overview of the ERTEC 200P ........................................................................................................15
1.1.1
Mechanisms for PROFINET IO (NRT communication) .............................................................15
1.1.2
Mechanisms for PROFINET IO (RT communication) RTC1/2 ...................................................15
1.1.3
Mechanisms for PROFINET IO (IRT communication) RTC3 .....................................................15
1.1.4
Mechanisms for PROFINET IO (IRT High Performance communication) RTC3 ........................16
1.2
ERTEC 200P data ..........................................................................................................................17
1.2.1
System Reliability ....................................................................................................................18
1.2.2
Electromagnetic Compatibility (EMC) .......................................................................................18
1.3
ERTEC 200P Use Cases ................................................................................................................19
1.3.1
Use Case 1 (UC1): Operation with external host ......................................................................19
1.3.2
Use Case 2 (UC2): Operation without external Host .................................................................20
1.4
Application notes ..........................................................................................................................21
1.4.1
EMC SDRAM Interface ............................................................................................................21
1.4.2
EMC Burst Flash Interface .......................................................................................................22
1.4.3
No free-running frequency at quartz break ...............................................................................22
1.4.4
16-bit Data Access over XHIF in Buffered Mode .......................................................................23
2
DESCRIPTION OF FUNCTIONS ................................................................................ 24
2.1
2.2
General Function Description (Motivation) ..................................................................................24
2.3
Description of Individual ERTEC 200P Blocks .............................................................................25
2.3.1
Processor Subsystem (ARM926) .............................................................................................25
2.3.1.1
2.3.1.2
Block diagram ......................................................................................................................26
2.3.1.3
ARM926EJ-S processor .......................................................................................................27
2.3.1.3.1
Cache structure of ARM926EJ-S ....................................................................................27
2.3.1.3.2
ARM926 Tightly Coupled Memories (ARM926_TCM) .....................................................28
2.3.1.3.3
Memory Management Unit (MMU) ..................................................................................29
2.3.1.3.4
Bus Interface of the ARM926 Processor .........................................................................30
2.3.1.3.5
ARM926 Embedded Trace Macrocell (ETM9), Trace Buffer (ETB11) ..............................30
2.3.1.4
Debug Support .....................................................................................................................31
2.3.1.4.1
Debug Configuration ......................................................................................................31
2.3.1.4.2
ARM926EJ-S Debug Interface .......................................................................................31
2.3.1.5
Boot Process for the ERTEC 200P .......................................................................................32
2.3.1.5.1
Primary Boot Loader ......................................................................................................34
2.3.1.5.2
Boot mode 1 … 2 (booting with NOR flash) in compile mode ..........................................37
2.3.1.5.3
Boot Modes 5 and 6 (Booting with SPI Master) ...............................................................38
2.3.1.5.4
Boot Mode 7 (Booting with External Host) ......................................................................40
2.3.1.6
Secondary Boot Loader .......................................................................................................43
2.3.1.6.1
Memory Swapping by the Secondary Boot Loader..........................................................43
2.3.2
AMBA (Internal Bus System) ....................................................................................................43
2.3.2.1
Characteristics of the Bus System in ERTEC 200P ..............................................................43
2.3.2.2
2.3.2.3
AHB Subsystem (Multi-Layer AHB) ......................................................................................44
2.3.2.3.1
AHB Arbiters ..................................................................................................................45
2.3.2.3.2
AHB Multi-layer Configuration ........................................................................................45
2.3.2.3.3
AHB Burst Breaker .........................................................................................................46
2.3.2.4
APB Subsystem (Peripheral Bus) .........................................................................................47
2.3.2.4.1
2.3.2.5
Address Range and Acknowledgement Delay Monitoring .....................................................51
2.3.2.5.1
Monitoring at the AHB Side ............................................................................................51
Содержание ERTEC 200P
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