
UM004001-COR1103 Glossary-7
Glossary
Public/Global Symbol A programming variable that is available to more than
one program file.
PUSH Store a Value In the Stack.
r Working Register Address.
R Register or Working-Register Address, Rising Edge.
RA Relative Address.
RAM Random-Access Memory. A memory that can be
written to or read at random. The device is usually
volatile, which means the data is lost without power.
RC Resistance/Capacitance.
RD Read.
RES Reset.
ROM Read-Only Memory. Nonvolatile memory that stores
permanent programs. ROM usually consists of
solid-state chips.
ROMCS ROM Chip Select.
RP Register Pointer.
RR Read Register or Rotate Right.
SCF Set C Flag.
SIO Serial Input/Output.
SL Shift Left or Special Lot.
SLL Shift Left Logical.
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