TMS320F28044_10 Datasheet, PDF (78/115 Pages) Texas Instruments – Digital Signal Processor

TMS320F28044
SPRS357C – AUGUST 2006 – REVISED JANUARY 2010
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6.6 Timing Parameter Symbology
Timing parameter symbols used are created in accordance with JEDEC Standard 100. To shorten the
symbols, some of the pin names and other related terminology have been abbreviated as follows:
Lowercase subscripts and their
meanings:
a
access time
c
cycle time (period)
d
delay time
f
fall time
h
hold time
r
rise time
su
setup time
t
transition time
v
valid time
w
pulse duration (width)
Letters and symbols and their
meanings:
H
High
L
Low
V
Valid
X
Unknown, changing, or don't care
level
Z
High impedance
6.6.1 General Notes on Timing Parameters
All output signals from the 28x devices (including XCLKOUT) are derived from an internal clock such that
all output transitions for a given half-cycle occur with a minimum of skewing relative to each other.
The signal combinations shown in the following timing diagrams may not necessarily represent actual
cycles. For actual cycle examples, see the appropriate cycle description section of this document.
78
Electrical Specifications
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