Motorola MPC8260 User Manual

Page 427

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MOTOROLA

Part IV. Communications Processor Module

Part IV-v

Part IV. Communications Processor Module

Table vii. Acronyms and Abbreviated Terms

Term

Meaning

AAL

ATM adaptation layer

ABR

Availabe bit rate

ACR

Allowed cell rate

ALU

Arithmetic logic unit

APC

ATM pace control

ATM

Asynchronous transfer mode

BD

Buffer descriptor

BIST

Built-in self test

BT

Burst tolerance

CBR

Constant bit rate

CEPT

Conference des administrations Europeanes des Postes et Telecommunications (European
Conference of Postal and Telecommunications Administrations).

C/I

Condition/indication channel used in the GCI protocol

CLP

Cell loss priority

CP

Communications processor

CP-CS

Common part convergence sublayer

CPM

Communications processor module

CPS

Cells per slot

CSMA

Carrier sense multiple access

CSMA/CD

Carrier sense multiple access with collision detection

DMA

Direct memory access

DPLL

Digital phase-locked loop

DPR

Dual-port RAM

DRAM

Dynamic random access memory

DSISR

Register used for determining the source of a DSI exception

EA

Effective address

EEST

Enhanced Ethernet serial transceiver

EPROM

Erasable programmable read-only memory

FBP

Free buffer pool

FIFO

First-in-Þrst-out (buffer)

GCI

General circuit interface

GCRA

Generic cell rate algorithm (leaky bucket)

GPCM

General-purpose chip-select machine

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