ICS1892Y-10 View Datasheet(PDF) - Integrated Circuit Systems
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'ICS1892Y-10' PDF : 148 Pages View PDF
ICS1892 Data Sheet
Chapter 2 Conventions and Nomenclature
Table 2-1. Conventions and Nomenclature (Continued)
Item
Registers
Signal references
Symbols
Convention / Nomenclature
• A bit in a register is identified using the format ‘register.bit’. For example, bit
0.15 is bit 15 of register 0.
• All numerical references to registers use decimal notation (and not
hexadecimal).
• When register name abbreviations are spelled out, words in parentheses
indicate additional description that is not part of the register name
abbreviation.
• 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.
• Chapter 10, “DC and AC Operating Conditions” defines the electrical
specifications for ‘logic zero’ and ‘logic one’ signals.
• In this data sheet, code group names are referred to as ‘symbols’ and they
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.
Terms:
‘set’,
‘active’,
‘asserted’,
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.)
Terms:
‘cleared’,
‘de-asserted’,
‘inactive’
The terms ‘cleared’, ‘inactive’, and ‘de-asserted’ are synonymous.
They do not necessarily infer logic zero.
Terms:
‘twisted-pair receiver’
In reference to the ICS1892, the term ‘Twisted-Pair Receiver’ refers to the set
of Twisted-Pair Receive output pins (TP_RXP and TP_RXN).
Terms:
In reference to the ICS1892, the term ‘Twisted-Pair Transmitter’ refers to the
‘twisted-pair transmitter’ set of Twisted-Pair Transmit output pins (TP_TXP and TP_TXN).
ICS1892, Rev. D, 2/26/01
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
12
February 26, 2001
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