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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 125
UG585 (v1.11) September 27, 2016
Chapter 5: Interconnect
5.1.5 Connectivity
The interconnect is not a full cross-bar structure. Table 5-3 shows which master can access which
slave.
5.1.6 AXI ID
The interconnect uses 13-bit AXI IDs, consisting of (from MSB to LSB):
Three bits that identify the interconnect (central, master, slave, etc.)
Eight bits supplied by the master; width is determined by the largest AXI ID width among all
masters
Two bits that identify the slave interface of the identified interconnect
Table 5-4 lists all possible AXI ID values that a slave can observe.
Table 5-3: Master - Slave Access
Master
Slave
On-chip
RAM
DDR
Port 0
DDR
Port 1
DDR
Port 2
DDR
Port 3
M_AXI
_GP
AHB
Slaves
APB
Slaves
GPV
CPUs
XX XXXX
AXI_ACP
XX XXXX
AXI_HP{0,1}
XX
AXI_HP{2,3}
XX
S_AXI_GP{0,1}
X X XXX
DMA Controller
X X XXX
AHB Masters
X X XXX
DevC, DAP
X X XXX
Table 5-4: Slave Visible AXI ID Values
Master Master ID Width AXI ID (as seen by the slaves)
AXI_HP0 6 13’b00000xxxxxx00
AXI_HP1 6 13’b00000xxxxxx01
AXI_HP2 6 13’b00000xxxxxx10
AXI_HP3 6 13’b00000xxxxxx11
DMAC controller 4 13’b0010000xxxx00
AHB masters 3 13’b00100000xxx01
DevC 0 13’b0100000000000