MityDSP::tcDspOutputLatch Class Reference

Class used to create an output latch interface (for use as a chip selector or other control line). More...

#include <core/DspOutputLatch.h>

List of all members.

Public Types
enum	teLatch { eeAssert = 0, eeRelease = 1 }
	Enumeration defining the conventions for asserting and releasing a latch. More...
Public Member Functions
virtual int	SetOutput (unsigned int ID, unsigned int value)=0
	This interface sets a latched output keyed by ID to high or low based on the value provided.
Static Public Attributes
static const int	gnBAD_ID = -1
	definition of error return code(s)

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Detailed Description

Class used to create an output latch interface (for use as a chip selector or other control line).

Note that the convention is for latches to be asserted active-low. Use of the provided enumeration to assert/release locks is recommended.

See also:

tcDspOutputLatch Page

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Member Enumeration Documentation

enum MityDSP::tcDspOutputLatch::teLatch

Enumeration defining the conventions for asserting and releasing a latch.

Enumerator:

eeAssert
eeRelease

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Member Function Documentation

virtual int MityDSP::tcDspOutputLatch::SetOutput	(	unsigned int	ID,
		unsigned int	value
	)			[pure virtual]

This interface sets a latched output keyed by ID to high or low based on the value provided.

Parameters:

[in]	ID	the ID of the output to configure
[in]	value	non-zero drives high, 0 drivers low

Returns:

- 0 on success

• gnBAD_ID if ID is not supported by device

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Member Data Documentation

const int MityDSP::tcDspOutputLatch::gnBAD_ID = -1 [static]

definition of error return code(s)