TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 217

• Manufacturer Part Number: TSC80251
• Manufacturer: TEMIC [TEMIC Semiconductors]

Rev. C – May 7, 1999
Glossary
This glossary defines acronyms, abbreviations, and terms that have special meaning in this manual.
#0data16
#1data16
#data An
#data16
#short
accumulator
addr11
addr16
addr24
ALU
assert
binary–code compatibility
binary mode
bit
bit (operand)
bit51
byte
A 32–bit constant that is immediately addressed in an instruction. The upper 16–bit
part is filled with zeros.
A 32–bit constant that is immediately addressed in an instruction. The upper 16–bit
part is filled with ones.
8–bit constant that is immediately addressed in an instruction.
A 16–bit constant that is immediately addressed in an instruction.
A constant, equal to 1, 2 or 4, that is immediately addressed in an instruction.
A register or storage location that forms the result of an arithmetic or logical
operation.
An 11–bit destination address. The destination can be anywhere within the same
2–Kbyte block of memory as the first byte of the next instruction.
A 16–bit destination address. The destination can be anywhere within the same
64–Kbyte region as the first byte of the next instruction.
A 24–bit destination address. The destination can be anywhere within the
16–Mbyte address space.
Arithmetic–logic unit. The part of the CPU that processes arithmetic and logical
operations.
The term assert refers to the act of making a signal active (enabled). The polarity
(high/low) is defined by the signal name. Active–low signals are designated by a
pound symbol (#) suffix; active–high signals have no suffix. To assert RD# is to
drive it low; to assert ALE is to drive it high.
The ability of a TSC80251 microcontroller to execute, without modification,
binary code written for an 80C51 microcontroller.
An operating mode, selected by a configuration bit, that enables a TSC80251
microcontroller to execute, without modification, binary code written for a
80C51 microcontroller.
A binary digit.
An addressable bit in the C251 Architecture.
An addressable bit in the C251 Architecture.
Any 8–bit unit of data.
TSC80251
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