Freescale Semiconductor MPC5200B User Manual page 745

J
J
JAVA™ . . . . . . . . . . . . . . . . . From Sun Microsystems, Inc.—a robust and versatile programming language that enables developers to:
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JTAG . . . . . . . . . . . . . . . . . . . Joint Test Action Group
K
Kbps . . . . . . . . . . . . . . . . . . . thousand (K) bits per second
Kb, Kbit . . . . . . . . . . . . . . . . Kilobit (written with lowercase b; 1024 Bytes)
KB, KByte . . . . . . . . . . . . . . KiloByte (written with uppercase B; 1024 bits)
L
LAN . . . . . . . . . . . . . . . . . . . Local Area Network—A computer network that spans a relatively small area. Most LANs are confined to a
single building or group of buildings. However, one LAN can be connected to other LANs over any distance
via telephone lines and radio waves. A system of LANs connected in this way is called a Wide-Area Network
(WAN).
LANs are capable of transmitting data at fast rates, much faster than data can be transmitted over a telephone line. However, distances are
limited. There is also a limit on the number of computers that can be attached to a single LAN.
Latency . . . . . . . . . . . . . . . . . The time an operation requires. For example:
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ld . . . . . . . . . . . . . . . . . . . . . . load
LIFO . . . . . . . . . . . . . . . . . . . Last-In-First-Out (buffer)
Little-Endian (LE) . . . . . . . . A byte-ordering method in memory where the address n of a word corresponds to the Least-Significant Byte. In
an addressed memory word, the bytes are ordered (left to right) 3, 2, 1, 0, with 3 being the Most-Significant
Byte. See also Big-Endian.
. . . . . . . . . . . . . . . . . . . . . . . In Little-Endian architectures, the rightmost bytes (those with a higher address) are most significant. For
example, consider the number 1025 stored in a 4Byte integer as shown in the table below.
Addr
00
01
02
03
LP . . . . . . . . . . . . . . . . . . . . . LocalPlus
LR . . . . . . . . . . . . . . . . . . . . . Link Register
LRU . . . . . . . . . . . . . . . . . . . Least Recently Used
lsb . . . . . . . . . . . . . . . . . . . . . least significant bit—the bit of least value in an address, register, data element, or instruction encoding.
LSB . . . . . . . . . . . . . . . . . . . . Least Significant Byte—the Byte of least value in an address, register, data element, or instruction encoding.
LSU. . . . . . . . . . . . . . . . . . . . Load/Store Unit
M
MA . . . . . . . . . . . . . . . . . . . . Memory Address
MAC . . . . . . . . . . . . . . . . . . . Media Access Control
A-6
Write software on one platform and run it on another.
Create programs to run within a web browser.
Develop server-side applications for online forums, stores, polls, processing HTML forms, and more.
Write applications for cell phones, two-way pagers, and other consumer devices.
execution latency is the number of processor clocks an instruction takes to execute.
memory latency is the number of bus clocks needed to perform a memory operation.
00000000 00000000 00000100 00000001
Big-Endian
00000000
00000000
00000100
00000001
MPC5200B Users Guide, Rev. 1
Little-Endian
00000001
00000100
00000000
00000000
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