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
Destination	The destination key identifier must match the contents of the destination key				1
Key	register, see section 9.5.10.
Source	The source path address field is used to add source path addresses to the				0,4,8,12
Path	head of the reply packet. The expected number of source path addresses is
Address	specified in the command byte. See section 7.6.9 for source path address
	decoding.
Source	The source logical address should be set to the logical address of the node				1
Logical	which sent the command or it should be set to the default value of FEh.
Address
Transaction	The transaction identifier identifies the command packet and reply packet				2
Identifier	with a unique number.
Extended	The extended read address is not used in the SpaceWire router and shall				1
Read	always be set to zero.
Address
Read	The read address identifies the start address for the read incrementing				4
Address	command. The valid starting read addresses are defined in section 9.
Data	The data length defines the number of bytes to read from the router. Valid				3
Length	data lengths are in the range 4-1064. 1064 allows the all the router registers
	to be read in one command. If the data length field is not a multiple of four
	bytes then the command is rejected by the SpaceWire router.
Header	The header CRC is the eight bit CRC code used to detect errors in the				1
CRC	command packet. The CRC code is checked before the command is
	executed.

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