Address Decoders

The address decoder performs address decoding from the incoming AXI transaction address and determines the targeted AXI slave transaction. The AXI Interconnect core does not alter the targeted address content and forwards it entirely to the slave device.

The following table shows an example of AXI slave ports that have a 12-bit address space. The AXI Interconnect core decodes the address and routes the transaction request to the corresponding slave without discarding the address offset.

Table 2. Slave Base Address Bits (Decoded Address)

Sent Address	Base Address Bits	Targeted Slave	Forwarded Address
0x00000FFF	0x00000	AXI_S0	0x00000FFF
0x00001FFF	0x00001	AXI_S1	0x00001FFF
0x00002FFF	0x00002	AXI_S2	0x00002FFF
0x00003FFF	0x00003	AXI_S3	0x00003FFF