5.1 Base Address

Each board in a PC/104 system must have its own unique block of addresses that does not overlap with any other board in the system or feature on the CPU. The lowest address of this address block is called the base address. Diamond-MM-32DX-AT's base address is set with 3 pairs of pins marked “ADDR” on pin header J7, located near the PC/104 bus connectors. The table below lists the 8 possible jumper configurations and the corresponding base addresses.

Base Address Configuration

Base Address Pin Header J7 Configuration

Hex	Decimal	C	B	A
140	320	Installed	Installed	Installed
340	832	Installed	Installed	Open
100	256	Installed	Open	Installed
180	384	Installed	Open	Open
200	512	Open	Installed	Installed
280	640	Open	Installed	Open
300	768	Open	Open	Installed	Default Settings
380	896	Open	Open	Open