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22
DMx820 User’s Manual
Bus Connectors
PC/104-Express Bus Connectors (DM9820HR Only)
The PCIe connector is the connection to the system CPU. The position and pin assignments are compliant with the
PCI/104-Express
Specification
. (See PC/104 Specifications on page 80)
This board is a “Universal” board, and c
an connect to either a Type 1 or Type 2 PCIe/104 connector.
PC/104-Plus PCI Connector
The PC/104-Plus connector carries the signals of the PC/104-Plus PCI bus. Refer to PC/104-Plus
TM
Specification for the pinout of this
connector. The DM9820HR connects to the power and ground pins only, and does not use any of the signals. The DM7820HR uses this
connector for communication with the CPU.
PCI Configuration Options (DM7820HR Only)
See PCI Configuration Options (DM7820HR Only) on page 15.
PC/104 ISA Connectors (DM7820HR Only)
The PC/104 connectors carry the signals of the PC/104-Plus ISA bus. Refer to PC/104-Plus Specification Revision 1.0 for the pinout of this
connector. This is a pass-through connector. The DM7820HR connects to the power and ground pins only, and does not use any of the
signals.