D
ELTA
T
AU
P
OWER
PMAC
R
EFERENCE
JUNE-2018
P
OWER
PMAC
UMAC
ARM
CPU
B
OARD
H
ARDWARE
R
EFERENCE
12
Ethernet cables with RJ-45 connectors. All ports provide transformer isolation to prevent ground-
loop problems.
ETH 0 Ethernet Port (P11)
The “ETH 0” port is the top Ethernet connector on the front panel. It is the primary port for
communicating with the CPU board from a host computer, as when using the Integrated
Development Environment (IDE) program running on a Windows
TM
PC for developing your
application.
Note that multiple computers on a single network can independently communicate to the Power
PMAC CPU board through this single hardware port.
ETH 2 Ethernet Port (P22)
The “ETH 2” port is immediately under the top Ethernet connector on the front panel. It is the
auxiliary Ethernet port and may be used as the EtherCAT port.
USB Connections
The Power PMAC UMAC ARM CPU board provides two USB ports one on the front panel as
the host port and one device port internal on the PCB.
Caution
Caution: USB ports are not electrically isolated, so care must be taken
in the grounding scheme when any separately powered device is
connected to one of these ports. Poor-quality communications and
even permanent component damage is possible when ground loop
issues or significant differences in ground potential exist.
USB Host Port (J20)
The USB “host” port is labeled “USB 1” on the front panel. It is a “Standard-A” USB 3.0 format
connector located just below the Ethernet ports and has a horizontal orientation. With this port,
the Power PMAC CPU acts as the host computer and various peripheral devices can be connected
through this port.
Probably the most common peripheral device used on this port is the “USB stick” flash drive. The
Power PMAC CPU board will automatically recognize standardly formatted flash drives
connected to this port. It is even possible to boot the CPU from this drive if the proper boot files
are present on the drive. It is also possible to use USB peripheral devices such as true disk drives
and keyboards.
USB Flash Memory and USB serial Port (P1 on 604147 daughter card)
The USB Flash Memory/Serial Port is labeled “P1” on the 604147 daughter card. It is a “Micro-
B” format connector. This port has dual functionality.
USB serial Port Functionality
When the initially plugged in the DIAG MODE LED is illuminated green,. This indicates that
the USB connection is serial. The baud rate for the connection is 115200, 8 data bits, no parity
and 1 stop bit. The COM port that is used by the PC is solely determined by Windows. Please
