Diamond Systems 16-Channel 12-Bit Analog Output PC/104 Module Board Configuration, Base Address

3. BOARD CONFIGURATION

Refer to the Drawing of Ruby-MM-1612 on Page 8 for locations of headers described in Chapters 3 and 4.

Base Address

Each board in the system must have a different base address. Use the pin header labeled J5, base address. The numbers above the jumpers correspond to the I/O address bits; bit 9 is the MSB and bit 0 is the LSB. Only bits 9 – 4 are used for the base address decoding. The remaining 4 bits 3-0 are assumed to be 0 for the base address. When a jumper is in, the corresponding base address bit is a 0, and when it is out, the bit is a 1.

The default address is 300 Hex = 1 1 0 0 0 0 0 0 0 0, so 9 8 are out and 7 6 5 4 are in. Any address above 100 Hex is a valid I/O address. However, there are many other circuits and boards sharing the I/O space, so you should check the documentation for your other boards to avoid conflicts. Below are some recommended I/O addresses for Ruby-MM-1612. Although the Base addresses can only be selected on 16-byte boundaries, Ruby-MM-1612 only uses the first 8 addresses.

	Table 3.1: Base Address Configuration
Base Address			Header J5 Position
Hex	Decimal	9	8	7	6	5	4
220	544	Out	In	In	In	Out	In
240	576	Out	In	In	Out	In	In
250	592	Out	In	In	Out	In	Out
260	608	Out	In	In	Out	Out	In
280	640	Out	In	Out	In	In	In
290	656	Out	In	Out	In	In	Out
2A0	672	Out	In	Out	In	Out	In
2B0	688	Out	In	Out	In	Out	Out
2C0	704	Out	In	Out	Out	In	In
2D0	720	Out	In	Out	Out	In	Out
2E0	736	Out	In	Out	Out	Out	In
300	768 (Default)	Out	Out	In	In	In	In
330	816	Out	Out	In	In	Out	Out
340	832	Out	Out	In	Out	In	In
350	848	Out	Out	In	Out	In	Out
360	864	Out	Out	In	Out	Out	In
380	896	Out	Out	Out	In	In	In
390	912	Out	Out	Out	In	In	Out
3A0	928	Out	Out	Out	In	Out	In
3C0	960	Out	Out	Out	Out	In	In
3E0	992	Out	Out	Out	Out	Out	In

Copyright 2001 Diamond Systems Corp. Ruby-MM-1612 User Manual V1.1 P. 5