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Reference Manual AFDX / ARINC 664 Application Interface Library
Section 2 - Software and Hardware Structure
2.4 Host-to-Target Communication
For Host-to-Target communication a small area of the ASP Shared RAM is used and
partitioned as shown in Figure 2.4-1.
The FDX High Level Application Interface System Level Drivers for the applicable operating
system communicate with the FDX Target Software by writing command information to the
Target Command Array (send message). Acknowledge information is returned in the Target
Acknowledge Array (receive Message) from the FDX Target Software.
Figure 2.4-1: Host-to-Target Communication
Target Communication
Control Register Area
Command Array Area
00001F00h
00082000h
00002000h
Target
Communication
RAM
relative
Byte
Address
Shared RAM
Acknowledge Array Area
00042000h
Summary of Contents for AFDX / ARINC 664
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