FGXMLAutopilot::JKFlipFlopImplementation Class Reference

Implements a JK flip flop as a clocked flip flop. More...

Inherits FGXMLAutopilot::ClockedFlipFlopImplementation.

Inherited by FGXMLAutopilot::MonoFlopImplementation.

Public Member Functions
	JKFlipFlopImplementation (bool rIsDominant=true)
	constructor for a JKFlipFlopImplementation
virtual bool	onRaisingEdge (DigitalComponent::InputMap input, bool &q)
	compute the output state according to the logic table on the raising edge of the clock
Public Member Functions inherited from FGXMLAutopilot::ClockedFlipFlopImplementation
	ClockedFlipFlopImplementation (bool rIsDominant=true)
	constructor for a ClockedFlipFlopImplementation
virtual bool	getState (double dt, DigitalComponent::InputMap input, bool &q)
	evaluates the output state from the input lines.
Public Member Functions inherited from FGXMLAutopilot::RSFlipFlopImplementation
	RSFlipFlopImplementation (bool rIsDominant=true)
Public Member Functions inherited from FGXMLAutopilot::FlipFlopImplementation
virtual	~FlipFlopImplementation ()
bool	configure (SGPropertyNode &prop_root, SGPropertyNode &cfg)
	configure this component from a property node.
virtual bool	isConfigProperty (const std::string &cfg_name) const

Additional Inherited Members
Protected Member Functions inherited from FGXMLAutopilot::FlipFlopImplementation
virtual bool	configure (SGPropertyNode &cfg_node, const std::string &cfg_name, SGPropertyNode &prop_root)
	configure this component from a property node.
Protected Attributes inherited from FGXMLAutopilot::RSFlipFlopImplementation
bool	_rIsDominant

Detailed Description

Implements a JK flip flop as a clocked flip flop.

The JK flip flop has five input lines: R, S, clock, J and K. The R and S lines work as described in the RS flip flop. Setting the J line to true sets the output to true on the next raising edge of the clock line. Setting the K line to true sets the output to false on the next raising edge of the clock line. If both, J and K are true, the output is toggled at with every raising edge of the clock line.

Undefined inputs default to false.

Logictable
S	R	J	K	clock	Q (previous)	Q
false	false	false	false	any	any	unchanged
true	false	any	any	any	any	true
any	true	any	any	any	any	false
false	false	true	false	^	any	true
false	false	false	true	^	any	false
false	false	true	true	^	false	true
false	false	true	true	^	true	false

Definition at line 194 of file flipflop.cxx.

Constructor & Destructor Documentation

JKFlipFlopImplementation()

FGXMLAutopilot::JKFlipFlopImplementation::JKFlipFlopImplementation ( bool rIsDominant = true )

inline

constructor for a JKFlipFlopImplementation

Parameters

rIsDominant

boolean flag to signal if RESET shall be dominant (true) or SET shall be dominant (false)

Definition at line 200 of file flipflop.cxx.

Member Function Documentation

onRaisingEdge()

bool JKFlipFlopImplementation::onRaisingEdge ( DigitalComponent::InputMap input, bool & q )

virtual

compute the output state according to the logic table on the raising edge of the clock

Parameters

input	a map of named input lines
q	a reference to a boolean variable to receive the output state

Returns

true if the state has changed, false otherwise

Implements FGXMLAutopilot::ClockedFlipFlopImplementation.

Definition at line 366 of file flipflop.cxx.

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The documentation for this class was generated from the following file:

• flipflop.cxx