ADM-VPX3-9Z2 User Manual
V1.1 - 16th January 2020
3.7.2.2 MicroSD and eMMC Flash Memories
The ADM-VPX3-9Z2 can interface to either a MicroSD card (SD 2.0 standard at 3.3V) or an eMMC device (v4.5
at 1.8V).
The Switch SW4-7 determines which of the two interfaces is in use (as they share common MIO pins).
The uSD card should be fitted in socket U87.
3.7.2.3 PS DDR4 Memory
The PS side of the MPSoC is connected to 1 bank of DDR4-2400 SDRAM, 1GB x72, 8GB total + ECC
3.7.3 Ethernet Interfaces
The 9Z2 has two SGMII Serial Ethernet Interfaces at VPX connector P1. Both Ethernet Interfaces are connected
to the MPSoC PS.
Both interfaces have a Marvell 88E1512 PHY, connected to the PS via RGMII.
The Zynq PS MDIO interface is also connected to the VPX connector via buffers.
VPX
P1
PHY
SGMII_1
RGMII_1
PS
PHY
SGMII_0
RGMII_0
ETH0
ETH1
Buffers
MDIO/MDC
MDIO/MDC
Figure 6 : Ethernet Interfaces
Each interface has three status LEDs. The functions of these are shown in
below.
LED
Colour
Function
0
Green
On = 1000M link speed
1
Green
On or Flashing = Activity
2
Green
On = Link up
Table 19 : Ethernet Status LEDs
3.7.4 Serial COM Ports
There are two serial COM ports connected to VPX connector P1, as shown in Figure
.
COM2 uses RS-232 by default but may be configured for RS-485 operation. Please contact Alpha Data for
further details of the RS-485 mode.
P0
PHY
PS
PHY
COM1
COM2
Platform Mgr
COM0
I2C
RS-232
RS-232/485
COM1
COM2
P1
Figure 7 : Serial COM Ports
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Functional Description
ad-ug-1323_v1_1.pdf
