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The onboard I2C bus is connected to MIO 20...21 pins. Devices on the bus shown in the table below.
| I2C address | Chip | Description |
|---|---|---|
| 0x50 | U63 24AA128T-I/ST | 128K Serial EEPROM |
| 0x53 | U64 24AA025E48T-I/OT | 2K Serial EEPROM with EUI-48™ or EUI-64™ Node Identity |
| 0x69 | U14 Si5345 | Clock generator and distributor |
UART and JTAG
Board has USB-UART bridge based on FTDI FT2232 chip. Use of this feature requires that USB driver is installed on your host PC. UART0 with MIO 22 .. 23 should be selected in "Zynq UltraScale+ MPSoC" configuration.
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Ethernet
Board has Marvell Alaska 88E1512 Ethernet PHY which use MDIO address 1.
SD
There are some limitations to use SD card Interface in Linux.
- Zynq UltraScale+ SD controller is working only in the 3.3V mode as it connected to SD card socket using 1.8V to 3.3V level shifter U10.
- Micro SD card socket has no "Write Protect" switch.
| Tip |
|---|
To force Linux driver not to use this features add following instructions to device tree file. &sdhci1 { no-1-8-v; |
USB
DACs
MGT
Clocking
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