Page 33
2.10 Power
The Zynq 7Z045 Mini-
Module Plus Development Board’s power is sourced from the Mini-Module
Plus baseboard 2 via the JX1 and JX2 connectors. Below is a diagram that illustrates the voltage
rails sourced by the baseboard.
Figure 12 - Power Supply Diagram
FMC_VADJ, VCC_AUX and the 1.5 V voltage rails are selectable from the baseboard. Early
versions (Rev B) of the Mini- Module Plus Baseboard 2 have three slide switches SW13, SW14
and SW15 to select these voltages.
Baseboard SW13 selects the DDR voltage that is supplied to the DDR3 devices. Since the Mini-
Module Plus Baseboard 2 supports the Virtex-5 Mini-Module Plus the DDR voltage is selectable
between 1.8 V (DDR2) and 1.5 V/1.35 V (DDR3). Since the Zynq utilizes DDR3 devices it is
important to always have SW13 in the UP position (marked “K7” on the baseboard) to insure the
proper 1.5 V voltage is being supplied to the Zynq Mini-
Module’s DDR3 memory.
Baseboard SW14 selects the VCC_AUX voltage that is supplied to the 7Z045 AP SoC. Placing the
switch in the UP position (marked “K7” on the baseboard) supplies the correct voltage of 1.8 V to the
7Z045. If the switch is put in the DOWN position this will select 2.5V and cause damage to the 7Z045.
