Intel 87C196CA, Supplement To User’S Manual

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8XC196L
X SUPPLEMENT
Glossary-2
byte Any 8-bit unit of data.
BYTE An unsigned, 8-bit variable with values from 0
through 2
8
–1.
CCBs Chip configuration bytes. The chip configuration
registers (CCRs) are loaded with the contents of the
CCBs after a reset.
CCRs Chip configuration registers. Registers that define the
environment in which the microcontroller will be
operating. The chip configuration registers are loaded
with the contents of the CCBs after a reset.
channel-to-channel matching error The difference between corresponding code
transitions of actual characteristics taken from
different A/D converter channels under the same
temperature, voltage, and frequency conditions. This
error is caused by differences in DC input leakage and
on-channel resistance from one multiplexer channel
to another.
characteristic A graph of output code versus input voltage; the
transfer function of an A/D converter.
chip-select unit The integrated module that selects an external
memory device during an external bus cycle.
clear The “0” value of a bit or the act of giving it a “0”
value. See also set.
code 1) A set of instructions that perform a specific
function; a program.
2) The digital value output by the A/D converter.
code center The voltage corresponding to the midpoint between
two adjacent code transitions on the A/D converter.
code transition The point at which the A/D converter’s output code
changes from “Q” to “Q+1.” The input voltage corre-
sponding to a code transition is defined as the voltage
that is equally likely to produce either of two adjacent
codes.
code width The voltage change corresponding to the difference
between two adjacent code transitions. Code width
deviations cause differential nonlinearity and nonlin-
earity errors.