ICS1893CF Data Sheet - Release
Chapter 2 Conventions and Nomenclature
Table 2-1.
Conventions and Nomenclature (Continued)
Item
Convention / Nomenclature
Signal references
•
When referring to signals, the terms:
•
– ‘FALSE’, ‘low’, or ‘zero’ represent signals that are logic zero.
– ‘TRUE’, ‘high’, or ‘one’ represent signals that are logic one.
defines the electrical
specifications for ‘logic zero’ and ‘logic one’ signals.
are shown between '/' (slashes). For example, the symbol /J/ represents
the first half of the Start-of-Stream Delimiter (SSD1).
Symbol sequences are shown in succession. For example, /I/J/K/
represents an IDLE followed by the SSD.
Symbols
•
In this data sheet, code group names are referred to as ‘symbols’ and they
•
Terms:
‘set’,
‘active’,
‘asserted’,
Terms:
‘cleared’,
‘de-asserted’,
‘inactive’
Terms:
‘twisted-pair receiver’
Terms:
‘twisted-pair transmitter’
The terms ‘set’, ‘active’, and ‘asserted’ are synonymous.
They do not necessarily infer logic one.
(For example, an active-low signal can be set to logic zero.)
The terms ‘cleared’, ‘inactive’, and ‘de-asserted’ are synonymous.
They do not necessarily infer logic zero.
In reference to the ICS1893CF, the term ‘Twisted-Pair Receiver’ refers to the
set of Twisted-Pair Receive output pins (TP_RXP and TP_RXN).
In reference to the ICS1893CF, the term ‘Twisted-Pair Transmitter’ refers to
the set of Twisted-Pair Transmit output pins (TP_TXP and TP_TXN).
ICS1893CF, Rev. F, 03/01/07
Copyright © 2007, Integrated Device Technology, Inc.
All rights reserved.
6
Mar. 2007
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
