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Texas Instruments TMS320C6000 User Manual

Page 58

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Glossary

A-7

Glossary

little endian:

An addressing protocol in which bytes are numbered from right

to left within a word. More significant bytes in a word have higher-num-
bered addresses. Endian ordering is specific to hardware and is deter-
mined at reset. See also big endian.

M

µ

-law companding:

See compress and expand (compand).

maskable interrupt:

A hardware interrupt that can be enabled or disabled

through software.

MCBSP:

See multichannel buffered serial port; see also MCBSP module.

MCBSP module:

MCBSP is an API module that contains a set of functions

for configuring the McBSP registers.

memory map:

A graphical representation of a computer system’s memory,

showing the locations of program space, data space, reserved space,
and other memory-resident elements.

memory-mapped register:

An on-chip register mapped to an address in

memory. Some memory-mapped registers are mapped to data memory,
and some are mapped to input/output memory.

most significant bit (MSB):

The highest order bit in a word.

multichannel buffered serial port (McBSP):

An on-chip full-duplex circuit

that provides direct serial communication through several channels to
external serial devices.

multiplexer:

A device for selecting one of several available signals.

N

nonmaskable interrupt (NMI):

An interrupt that can be neither masked nor

disabled.

O

object file:

A file that has been assembled or linked and contains machine

language object code.

off chip:

A state of being external to a device.

on chip:

A state of being internal to a device.