General Notes 1
miriac SBC-LS1028A User Manual
V 1.0
6/65
© MicroSys Electronics GmbH 2019
1.5
Symbols, Conventions and Abbreviations
Symbols
Throughout this document, the following symbols will be used:
Information marked with this symbol MUST be obeyed to avoid
the risk of severe injury, health danger, or major destruction of
the unit and its environment
Information marked with this symbol MUST be obeyed to avoid
the risk of possible injury, permanent damage or malfunction of
the unit.
Information marked with this symbol gives important hints upon
details of this manual, or in order to get the best use out of the
product and its features.
Table 1-1 Symbols
Conventions
Symbol
explanation
#
denotes a low active signal
←
denotes the signal flow in the shown direction
→
denotes the signal flow in the shown direction
↔
denotes the signal flow in both directions
→
denotes the signal flow in the shown direction with additional logic /
additional ICs in the signal path
I/O
denotes a bidirectional pin
Input
denotes an input pin
matched
denotes the according signal to be routed impedance controlled and
length matched
Output
denotes an output pin
Pin 1
refers to the numeric pin of a component package
Pin a1
refers to the array position of a pin within a component package
XXX-
denotes the negative signal of a differential pair
XXX+
denotes the positive signal of a differential pair
XXX
denotes an optional not mounted or fitted part
Table 1-2 Conventions
