Number Representation; Signal-Naming Convention - Intel IXP45X Developer's Manual

Table 1. List of Acronyms (Sheet 4 of 4)
Acronym
SNMP
SOF
SPHY
SRAM
SSRAM
T1
TCP
TCP/IP
TDM
TLB
TMS
Tx
UART
UBR
USB
UTOPIA
VBR
VC
VCC
VCI
VDSL
VLAN
VoIP
VPN
WAN
xDSL
ZBT
1.5.1

Number Representation

All numbers in this document can be assumed to be base 10 unless designated
otherwise. In text and pseudo code descriptions, hexadecimal numbers have a prefix of
0x and binary numbers have a prefix of 0b. For example, 107 would be represented as
0x6B in hexadecimal and 0b1101011 in binary.
1.5.2

Signal-Naming Convention

In this document, the following naming conventions are used:
• A word refers to 32 bits.
• Dword for PCI transactions, PCI specification refers to Dword as 32-bit transactions
• Signal names or register bit names ending with '_N' or '#'are active low, for
example RTS_N.
Signals or register bits without this are active high.
® ®
Intel IXP45X and Intel IXP46X Product Line of Network Processors
Developer's Manual
42
® ®
Intel IXP45X and Intel
Description
Simple Network Management Protocol
Start-of-Frame
Single PHY
Static Random Access Memory
Synchronous Static Random Access Memory
Type 1 (trunk line)
Transmission Control Protocol
Transmission Control Protocol/Internet Protocol
Time Division Multiplexing
Time slot Loopback
Translation Look-Aside Buffer
Test-Mode Select
Transmit
Universal Asynchronous Receiver-Transmitter
Unspecified Bit Rate
Universal Serial Bus
Universal Test and Operation PHY Interface for ATM
Variable Bit Rate
Virtual Channel
Virtual Circuit Connection
Virtual Circuit Identifier
Very-High-Speed, Digital Subscriber Line
Virtual Local Area Network
Voice-Over-Internet Protocol
Virtual Private Network
Wide Area Network
Any Digital Subscriber Line
Zero-bus Turn Around
IXP46X Product Line of Network Processors—Introduction
Reference Number: 306262 - 004US
August 2006