Memory Access Protocol (MAP) ¯\_(ツ)_/¯

Word#	BITS	Name	Description	Note
0	[31:0]	TID[31:0]	Transaction ID	(echoed back)
0	[31:0]	TID[63:32]	Transaction ID	(echoed back)
1	[29:0]	Size	Number of 32-bit words to transfer
1	[31:30]	Unused
2	[30:0]	Address[33:2]	Starting word address of transfer	Bits 1:0 are always 0
2	[31]	RNW	OpCode	0=Read, 1=Write

Word#	BITS	Name	Description	Note
0	[31:0]	TID[31:0]	Transaction ID	(echoed back)
0	[31:0]	TID[63:32]	Transaction ID	(echoed back)
1	[29:0]	Size	Number of 32-bit words to transfer
1	[31:30]	Unused
2	[30:0]	Address[33:2]	Starting word address of transfer	Bits 1:0 are always 0
2	[31]	RNW	OpCode	0=Read, 1=Write
3+N		Data	Read data word N
3+N+Size	[0]	Error	An error occured
3+N+Size	[2:1]	ErrorValue	AXI Return code

Ben Reese

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