HW.6.2 HW Architecture (HwArc)
In the HW Architecture, the decomposition of the HW Unit into single logical blocks, the individual HW Components and the HW Modules and the functionality and interaction of these parts is described. In the requirements allocation what is shown is which design elements cover which requirements.
The HW Architecture contains the results of both the preliminary and the detailed design of the HW Unit.
1. General Information
2. Solution Proposals
3. Structure of the HW Unit
3.1 Overview of the HW Components/HW Modules of the HW Unit
3.2 Criticality of the HW Components/HW Modules
3.3 Bridge Plan
3.4 Address Map
3.5 Content of Programmable Components
3.6 User References
3.7 Individual Descriptions
4 Allocation of Requirements
See schema 1. General Information.
This section contains a description as well as an evaluation of possible HW Unit architectures. Solution proposals for the architecture of HW Units are illustrated. They roughly describe the decomposition of the HW Unit into processes, HW Components and HW Modules. The advantages and disadvantages are illustrated for each individual solution proposal (e. g. with regard to performance input and output, reusability, etc.); the feasibility is illustrated as well. The selection of a solution proposal is documented and explained.
The modularization reports on the decomposition of a HW Unit in HW Components and HW Modules. This section also contains a preliminary design (block diagram) of the HW Unit. Timing diagrams or sections of the flow diagram are included in order to explain the text sections.
All HW Modules/HW Components are listed together with their identifiers and with a long name. Apart from this a graphical representation (block diagram) should be selected that illustrates the "consists-of" hierarchy.
Each HW Component/HW Module is allocated a criticality level in the form of a table. The criticality level is derived from the criticality of the function realized in the HW Component/HW Module.
This contains the description of the bridge versions (e. g. jumpers).
The allocation of the address area of the HW Unit with individual functions is illustrated.
Logical equations of the individual programmable components are structured into sub-items.
Characteristic features in connection with the use of this HW Unit in a device or in other, already existing HW Units. A description of insertion versions and information about wiring are also included.
Each HW Component and each HW Module are individually described. In order to make the text sections more clear, timing diagrams or flow diagram sections are included as well.
3.7.m HW Component or HW Module (m)
Note: "m" is used for giving HW Components or HW Modules consecutive numbers.
3.7.m.1 Description of the HW Component/HW-Module
The HW Component/the HW Module is defined by a short performance description and the utilized resources.
3.7.m.2.1 Mechanical Characteristics
List of the most important mechanical data (e. g. measurements, jumpers).
3.7.m.2.2 Electrical Characteristics
List of the most important electrical data (performance requirements, temperature).
The relationship to the hardware requirements will be defined. It must be documented if all requirements can be met and how the requirements can be broken down to HW Components/HW Modules.
Bibliography and reference to data manual, descriptions and other documents.
Last Updated 01.Jan.2002
Updated by Webmaster
Last Revised 01.Jan.2002
Revised by Webmaster