Analog Devices ADSP-BF53x Blackfin, Reference

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Conventions
xxxvi ADSP-BF53x/BF56x Blackfin Processor Programming Reference
Conventions
Text conventions used in this manual are identified and described as
follows.
Example Description
Close command
( File menu)
Titles in reference sections indicate the location of an item within the
Vi+ environment’s menu system. For example, the
Close
command appears on the File menu.
this|that
Alternative items in syntax descriptions are delimited with a vertical
bar; read the example as
this
or
that
. One or the other is required.
{this | that}
Optional items in syntax descriptions appear within curly braces; read
the example as an optional
this
or
that
.
[{({S|SU})}]
Optional items for some lists may appear within parenthesis. If an
option is chosen, the parenthesis must be used (for example,
(S)
). If
no option is chosen, omit the parenthsis.
.
SECTION
Commands, directives, keywords, and feature names are in text with
letter gothic
font.
filename
Non-keyword placeholders appear in text with italic style format.
SWRST Software Reset
register Register names appear in UPPERCASE and a special typeface. The
descriptive names of registers are in mixed case and regular typeface.
TMR0E, RESET Pin names appear in UPPERCASE and a special typeface.
Active low signals appear with an OVERBAR.
DRx, SIC_IMASKx,
I[3:0]
SMS[3:0] Register, bit, and pin names in the text may refer to groups of registers
or pins:
A lowercase x in a register name (DRx) indicates a set of registers (for
example, DR2, DR1, and DR0) for those processors with more than
one register of that name. For processors with only a single register of
that name, the x can be disregarded (for example, SIC_IMASKx refers
to SIC_IMASK in the ADSP-BF533 processor, and to SIC_IMASK0
and SIC_IMASK1 in the ADSP-BF561).
A colon between numbers within brackets indicates a range of registers
or pins (for example, I[3:0] indicates I3, I2, I1, and I0; SMS[3:0] indi-
cates SMS3, SMS2, SMS1, and SMS0).