Visible to Intel only — GUID: sfo1410068108021
Ixiasoft
Visible to Intel only — GUID: sfo1410068108021
Ixiasoft
8.3.7. System Interconnect Master Properties
The system interconnect connects to various slave interfaces through the L3 interconnect and L3 slave peripheral switch.
Master | Width | Clock | Switch | TrustZone Security | GPV Access | CDAS | Issuance | FIFO Buffer Depth16 | Type |
---|---|---|---|---|---|---|---|---|---|
L2 cache M0 |
64 |
mpu_l2_ram_clk | L3 interconnect |
Per Transaction |
Yes |
SSPID |
7, 12, 19 |
2, 2, 2, 2, 2 |
AXI |
FPGA-to-HPS bridge |
64 |
l3_main_clk | L3 interconnect |
Per Transaction |
Yes |
SAS |
16, 16, 32 |
2, 2, 6, 6, 2 |
AXI |
DMA |
64 |
l4_main_clk | L3 interconnect |
Per Transaction |
No |
SSPID |
8, 8, 8 |
2, 2, 2, 2, 2 |
AXI |
EMAC 0/1 |
32 |
l4_main_clk | L3 master peripheral switch |
Secure |
No |
SSPID |
16, 16, 32 |
2, 2, 2, 2, 2 |
AXI |
USB OTG 0/1 |
32 |
usb_mp_clk | L3 master peripheral switch |
Nonsecure |
No |
SSPID |
2, 2, 4 |
2, 2, 2 |
AHB |
NAND |
32 |
nand_x_clk | L3 master peripheral switch |
Nonsecure |
No |
SSPID |
1, 8, 9 |
2, 2, 2, 2, 2 |
AXI |
SD/MMC |
32 |
l4_mp_clk | L3 master peripheral switch |
Nonsecure |
No |
SSPID |
2, 2, 4 |
2, 2, 2 |
AHB |
ETR |
32 |
dbg_at_clk | L3 master peripheral switch |
Per Transaction |
No |
SSPID |
32, 1, 32 |
2, 2, 2, 2, 2 |
AXI |
DAP |
32 |
dbg_clk | L3 interconnect |
Secure |
Yes |
SS |
1, 1, 1 |
2, 2, 2 |
AHB |
The AXI IDs of the HPS peripheral masters identify transactions from the HPS to soft logic over the HPS-to-FPGA bridge. Soft logic in the FPGA can monitor the AXI IDs to determine which master issued each transaction. For HPS peripheral AXI IDs, refer to "HPS Peripheral Master Input IDs".