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8XC196NT USER'S MANUAL
SAR
set
SFR
SHORT-INTEGER
sign extension
sink current
source current
SP
special interrupt
special-purpose memory
standard interrupt
state time (or state)
Glossary-10
RESET# is a level-sensitive input. EXTINT is
normally a sampled input; however, the powerdown
circuitry uses EXTINT as a level-sensitive input
during powerdown mode.
Successive approximation register. A component of
the A/D converter.
The "1" value of a bit or the act of giving it a "1"
value. See also clear.
Special-function register.
An 8-bit, signed variable with values from –2
7
through +2
–1.
A method for converting data to a larger format by
filling the upper bit positions with the value of the
sign. This conversion preserves the positive or
negative value of signed integers.
Current flowing into a device to ground. Always a
positive value.
Current flowing out of a device from V
negative value.
Stack pointer.
Any of the three nonmaskable interrupts (unimple-
mented opcode, software trap, or NMI).
A partition of memory used for storing the interrupt
vectors, PTS vectors, chip configuration bytes, and
several reserved locations.
Any maskable interrupt that is assigned to the
interrupt controller for processing by an interrupt
service routine.
The basic time unit of the device; the combined
period of the two internal timing signals, PH1 and
PH2. (The internal clock generator produces PH1 and
PH2 by halving the frequency of the signal on
XTAL1. The rising edges of the active-high PH1 and
PH2 signals generate CLKOUT, the output of the
internal clock generator.) Because the device can
operate at many frequencies, this manual defines time
requirements in terms of state times rather than in
specific units of time.
7
. Always a
CC
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