Atmel SpW-10X user manual SpaceWire Router, User Manual, Preliminary

SpW-10X Ref.: UoD_SpW-10X_

SpaceWire Router

UserManual

Issue: 3.4

User Manual Date: 11th July 2008

then a packet that that is addressed to go out of the same port that it arrived on will be discarded and a packet address error recorded.

Command reply packets which are returned through the same port they arrived on are not affected by the value of the Enable Self-Addressing bit.

Figure 8-13 shows the Enable Self-Addressing mode when enabled and when disabled.

1 2

1	1		4	1		4
	2	R1	5	2	R1	5
	3		6	3		6
Packet arrives at port 1 with address 1				Packet is routed to port 1 and packet data returns on link one
“Address-self mode” is enabled

1						2
			1		4		1		4
		1
			2	R1	5		2	R1	5
			3		6		3		6
	Packet arrives at port 1 with address 1					Packet is discarded by the routing control logic
		“Address-self” mode is disabled

Figure 8-13 Packet Self-Addressing mode

Preliminary 94