Analog Devices Blackfin ADSP-BF537 Hardware Reference Manual page 1149

Glossary
ISR (Interrupt Service Routine).
Software that is executed when a specific interrupt occurs. A table stored
in low memory contains pointers, also called vectors, that direct the pro-
cessor to the corresponding ISR. See EVT.
JTAG (Joint Test Action Group).
An IEEE Standards working group that defines the IEEE 1149.1 standard
for a test access port for testing electronic devices.
JTAG port.
A channel or port that supports the IEEE standard 1149.1 JTAG standard
for system test. This standard defines a method for serially scanning the
I/O status of each component in a system.
jump.
A permanent transfer of the program flow to another part of program
memory.
latency.
The overhead time used to find the correct place for memory access and
preparing to access it.
Least Recently Used algorithm.
Replacement algorithm used by cache that first replaces lines that have
been unused for the longest time.
Least Significant Bit (LSB).
The last or rightmost bit in the normal representation of a binary num-
ber—the bit of a binary number giving the number of ones.
ADSP-BF537 Blackfin Processor Hardware Reference G-13