the values. Start with about 15pf and work up to as
much as 100pf for very low frequency crystals.
You can also feed an existing TTL-level clock
signal into pin 16.
Q: Will running the Pak I at a lower speed reduce
its power consumption? Will it run faster.
A: Yes running at slower speeds will save power.
You will probably not have success overclocking
the Pak I. However, contact AWC for information
on faster devices and other customizations.
Q: Why are my results backwards?
A: Make sure you are using MSBPRE with the
ShiftIn command and not MSBFIRST. Use
MSBFIRST with the ShiftOut command.
Q: Is there a second source for the PakI?
A: No. However, if you have a high-volume
application and you are concerned about
availability, contact AWC about obtaining a
license to produce your own Pak I's or obtain them
from third parties.
Q: How can I compare two numbers?
A: To compare X and Y, store X away (using one
of the STO commands). Subtract Y from X and
then call DIGIT 0 to determine if the result is
positive, negative, or zero (this operation is very
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