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IOFPGA system peripherals memory map

This section describes the memory map of the IOFPGA system peripherals that is at chip select CS3 in the SMC interface.

The chip select CS3 is at 0x001C000000 and provides access to low-bandwidth system peripherals in the IOFPGA that the Juno SoC does not provide.

The following figure shows the mapping of the IOFPGA system peripherals memory map into the SMC memory map.

Figure 4-2 V2M‑Juno motherboard IOFPGA system peripherals memory map


The following table shows the IOFPGA system peripherals memory map.

Table 4-2 V2M‑Juno motherboard IOFPGA system peripherals memory map

Address range Size Description
0x1C000000 - 0x1C00FFFF 64KB CS3-DAP ROM.
0x1C010000 - 0x1C01FFFF 64KB CS3-APB registers. User LEDs.
0x1C020000 - 0x1C02FFFF 64KB CS3-SP810 System controller.
0x1C030000 - 0x1C04FFFF 128KB Reserved. Do not write to or read from these addresses.
0x1C050000 - 0x1C05FFFF 64KB CS3-PL180 User microSD card.
0x1C070000 - 0x1C07FFFF 64KB CS3-PL050 (1) KMI interface 1.
0x1C080000 - 0x1C0EFFFF 448KB Reserved. Do not write to or read from these addresses.
0x1C0F0000 - 0x1C0FFFFF 64KB SP805 System watchdog.
0x1C100000 - 0x1C1FFFFF 64KB Reserved. Do not write to or read from these addresses.
0x1C110000 - 0x1C11FFFF 64KB CS3-SP804 Dual-timer (0/1).
0x1C120000 - 0x1C12FFFF 64KB CS3-SP804 Dual-timer (2/3).
0x1C140000 - 0x1C15FFFF 128KB Reserved. Do not write to or read from these addresses.
0x1C1D0000 - 0x1C1DFFFF 64KB CS3-PL061 GPIO 0 Additional user key entry.
0x1C1E0000 - 0x1C1EFFFF 64KB Reserved. Do not write to or read from these addresses.
0x1C1F0000 - 0x1EFFFFFF 46MB Reserved. Do not write to or read from these addresses.
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