
3.MESSAGE TRANSMISSION DESCRIPTION B-63434EN/02
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Receive interface for transparent messages
The interface area specified by Pa52 (transparent receive message
allocation address) has the format shown below.
70
+0 Receive flag
+2 Transmission source node
number
+3 (Reserved)
+4 Transaction code
+6 Size
+8 Data
Table 3-4 Transparent Message Receive Interface Items
Interface item Description Direction
Receive flag Flag used by the system to post the reception of a
transparent message to the user program.
0001h: The system posts the reception of a transparent
message.
0000h: The user program posts the completion of
message receive processing.
S→U
U→S
Transmission
source node
number
Transparent message transmission source node number S→U
Transaction code Transaction code of a received transparent message S→U
Size Number of words of data contained in a received
transparent message
S→U
Data Data contained in a received transparent message S→U