2 Hardware Configuration
The DSC-100 is automatically configured at boot time by the computer's BIOS or
operating system. There are no required switches or jumpers to set for installation.
This chapter lists a number of optional jumper settings that control various hardware
features. These jumpers are grouped together at the end of the board opposite the D-9
connectors. Any changes from the factory default should be made before installing the DSC-100
in the computer.
2.1 Factory Default Configuration
Figure 2 shows the jumper configuration as shipped from the factory, with two spare
jumpers applied in neutral positions. Remove one or both and apply as shown in following
sections to set optional features.
X2
SPAD
X8
X4
Figure 2 --- Factory default jumper configuration
2.2 Enable Scratchpad Register (SPAD)
In the default configuration, an Interrupt Status Register (see section 4.3) and an Options
Register (see section 4.4) replace the scratchpad (base a 7) of each UART. If the SPAD
jumper is applied as in Figure 3, the UART scratchpad registers are enabled, and the Interrupt
Status Register and the Options Register are not available.
X2
SPAD
X8
X4
Figure 3 --- Enable scratchpad registers
Quatech DSC-100 User's Manual
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