101-0788 Rabbit Semiconductor, 101-0788 Datasheet - Page 34

• Manufacturer Part Number: 101-0788
• Description: COMPUTER SGL-BOARD OP6600 W/SRAM
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0788

• Module/board Type: Single Board Computer Module
• For Use With/related Products: OP6600
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 101-788; 101-788

3.7 Other Hardware
3.7.1 Clock Doubler
The Intellicom uses an 18.432 MHz crystal, and so its clock doubler is disabled automati-
cally in the BIOS.
3.7.2 Spectrum Spreader
Intellicom boards that carry the CE mark have a Rabbit 2000 microprocessor that features
a spectrum spreader, which helps to mitigate EMI problems. By default, the spectrum
spreader is on automatically for Intellicom boards that carry the CE mark when used with
Dynamic C 7.32 or later versions, but the spectrum spreader may also be turned off or set
to a stronger setting. The means for doing so is through a simple global macro as shown
below.
There is no spectrum spreader functionality for Intellicom boards that do not carry the CE
mark or when using any Intellicom with a version of Dynamic C prior to 7.30.
30
1. Select the “Defines” tab from the Dynamic C
2. Normal spreading is the default, and usually no entry is needed. If you need to specify
3. Click
normal spreading, add the line
For strong spreading, add the line
To disable the spectrum spreader, add the line
are in the project file where you defined the macro.
ENABLE_SPREADER=1
ENABLE_SPREADER=2
ENABLE_SPREADER=0
NOTE: The strong spectrum-spreading setting is not needed for the Intellicom.
OK
to save the macro. The spectrum spreader will now remain off whenever you
Options > Project Options
Intellicom (OP6600/OP6700)
menu.