TE0808 TRM
Revision: v.32
Copyright © 2019 Trenz Electronic GmbH
20 of 46
http://www.trenz-electronic.de
6 Boot Process
The boot device and mode of the Zynq Ult MPSoC can be selected via 4 dedicated pins accessible on B2B
connector J2:
Boot Mode Pin
B2B Pin
PS_MODE0
J2-109
PS_MODE1
J2-107
PS_MODE2
J2-105
PS_MODE3
J2-103
Table 8
: Boot mode pins on B2B connector J2.
Following boot modes are possible on the TE0808 Ult module by generating the corresponding 4-bit code
by the pins PS_MODE0 ... PS_MODE3 (little-endian alignment):
Boot
Mode
Mode Pins
[3:0]
MIO
Location
Description
JTAG
0x0
JTAG
Dedicated PS interface.
QSPI32
0x2
MIO[12:0]
Configured on module with dual QSPI Flash
Memory.
32-bit addressing.
Supports single and dual parallel
configurations.
Stack and dual stack is not
supported.
SD0
0x3
MIO[25:13]
Supports SD 2.0.
SD1
0x5
MIO[51:38]
Supports SD 2.0.
eMMC_18
0x6
MIO[22:13]
Supports eMMC 4.5 at 1.8V.
USB 0
0x7
MIO[52:63]
Supports USB 2.0 and USB 3.0.
PJTAG_0
0x8
MIO[29:26]
PS JTAG connection 0 option.
SD1-LS
0xE
MIO[51:39]
Supports SD 3.0 with a required SD 3.0
compliant level shifter.
Table 9
: Selectable boot modes by dedicated boot mode pins.