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Notation
µA
µF
µs
µW
Signal Names
1.3
Glossary of Terms and Acronyms
Table 2
defines terms used in this document.
Table 2. Definitions of Terms
Term/Acronym
Assisted Gunning
Transceiver Logic+
Asynchronous
GTL+
Fern Hill
Infrared Data
Assoc.
IMVP6+
10
V
volts
microamps, microamperes
microfarads
microseconds
microwatts
Signal names are shown in uppercase. When several signals share a
common name, an individual signal is represented by the signal name
followed by a number, while the group is represented by the signal name
followed by a variable (n). For example, the lower chip-select signals are
named CS0#, CS1#, CS2#, and so on; they are collectively called CSn#.
A pound symbol (#) appended to a signal name identifies an active-low
signal. Port pins are represented by the port abbreviation, a period, and
the pin number (e.g., P1.0).
The front-side bus uses a bus technology called AGTL+, or Assisted
Gunning Transceiver Logic. AGTL+ buffers are open-drain, and require
pull-up resistors to provide the high logic level and termination. AGTL+
output buffers differ from GTL+ buffers with the addition of an active
pMOS pull-up transistor to assist the pull-up resistors during the first clock
of a low-to-high voltage transition.
The processor does not utilize CMOS voltage levels on any signals that
connect to the processor. As a result, legacy input signals such as A20M#,
IGNNE#, INIT#, LINT0/INTR, LINT1/NMI, PWRGOOD, SMI#, SLP#, and
STPCLK# utilize GTL+ input buffers. Legacy output signals (FERR# and
IERR#) and non-AGTL+ signals (THERMTRIP# and PROCHOT#) also
utilize GTL+ output buffers. All of these signals follow the same DC
requirements as AGTL+ signals, however the outputs are not actively
driven high (during a logical 0 to 1 transition) by the processor (the major
difference between GTL+ and AGTL+). These signals do not have setup or
hold time specifications in relation to BCLK[1:0], and are therefore
referred to as "Asynchronous GTL+ Signals". However, all of the
Asynchronous GTL+ signals are required to be asserted for at least two
BCLKs in order for the processor to recognize them.
The name of the development board that uses Intel
processor SU9400 or SL9400 with the Mobile Intel GS45 Express Chipset
(Small Form Factor) and DDR3 SDRAM
The Infrared Data Association (IrDA) has outlined a specification for serial
communication between two devices via a bi-directional infrared data
port. The development board has such a port and it is located on the rear
of the board between the two USB connectors.
The Intel Mobile Voltage Positioning specification for the Intel® Core™ 2
Duo Processor. It is a DC-DC converter module that supplies the required
voltage and current to a single processor.
About This Manual
Definition
Definition
Core™ 2 Duo
®
Development Kit User's Manual
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