Version 1.0
Page 32
Pins in
Red
are Power or Ground signals.
Pins in
Blue
are dedicated signals.
Pins in
Black
are multi-function/general-purpose pins.
Pins in
Black
with
_GC
designators are multi-function/general-purpose pins or Global Clock inputs.
HP_DP
stands for High Performance Differential Pairs
HP_SE
stands for High Performance Single-Ended
HD_SE
stands for High Density Single-Ended.
HD_SE
signals can be used as Single-Ended or Differential Inputs.
2.13.3 Powering the PL Banks (SOM_PG_OUT)
The UltraZed-EG SOM does not power the PL VCCIO
banks. This is required to be provided by the end-
user carrier card. This gives the end-user carrier card the flexibility to control the I/O bank voltages
depending on the interfaces the end-user decides to implement.
The Zynq Ult MPSoC has 4 PL I/O banks that are each capable of being powered separately by
the end-user carrier card. The UltraZed-EG SOM provides an active-high
SOM_PG_OUT
signal to the end-
user carrier card. The end-user carrier card shall not provide power to the PL VCCIO pins on the JX
connectors until the
SOM_PG_OUT
signal becomes active.
2.14 Configuration Modes
The Zynq Ult MPSoC device uses a multi-stage boot process that supports both non-secure and
secure boot. The PS is the master of the boot and configuration process. Upon reset, the device PS MODE
pins are read to determine the primary boot device to be used. The UltraZed-EG SOM allows several of
those boot devices: QSPI, SD Card, eMMC, and JTAG boot are easily accessible by changing the Boot
Mode Switch, SW2, settings.
NOTE: The JTAG interface is to be implemented on the end-user carrier card.
The boot mode pins on Zynq Ult MPSoC are dedicated pins unlike the Zynq SoC which shared the
mode pins with PS MIO pins. All PS MODE pins are pulled either high or low through the Boot Mode Switch.
The table below shows the available boot mode configuration settings using the Boot Mode Switch, SW2.
Table 29
– UltraZed-EG SOM Configuration Modes
BOOT MODE
MODE PIN [3:0]
SW2[1:4]
JTAG *
0x0
ON-ON-ON-ON
QSPI24
0x1
OFF-ON-ON-ON
QSPI32
0x2
ON-OFF-ON-ON
SD1/MMC33 *
0x5
OFF-ON-OFF-ON
EMMC18
0x6
ON-OFF-OFF-ON
SD1/MMC33 *
0xE
ON-OFF-OFF-OFF
*Interfaces on the End User Carrier Card
Figure 12
– UltraZed-EG SOM Boot Mode Switch