Subversion Repositories openrisc_2011-10-31

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// ----------------------------------------------------------------------------

// $Id$

// $Id$

#ifndef TAP_ACTION_IR_SCAN__H

#ifndef TAP_ACTION_IR_SCAN__H

#define TAP_ACTION_IR_SCAN__H

#define TAP_ACTION_IR_SCAN__H

#include <stdint.h>

#include <stdint.h>

#include "TapAction.h"

#include "TapAction.h"

#include "TapStateMachine.h"

#include "TapStateMachine.h"

//! Class to represent a TAP IR-Scan action.

//! Class to represent a TAP IR-Scan action.

//! This class assumes that JTAG instruction registers are relatively

//! This class assumes that JTAG instruction registers are relatively

//! small. IEEE 1149.1 mandates at least 2 bits, although implementations

//! small. IEEE 1149.1 mandates at least 2 bits, although implementations

//! often have a wider range of instructions. The OpenRISC 1000 debug unit for

//! often have a wider range of instructions. The OpenRISC 1000 debug unit for

//! example uses 5 bits. 32-bits seems more than enough for the largest

//! example uses 5 bits. 32-bits seems more than enough for the largest

//! applications.

//! applications.

public:

public:

  // Constructor

  // Constructor

  TapActionIRScan (sc_core::sc_event *_doneEvent,

  TapActionIRScan (sc_core::sc_event *_doneEvent,

  // Get the shifted out value

  // Get the shifted out value

  uint32_t  getIRegOut ();

  uint32_t  getIRegOut ();

protected:

protected:

  // Process the action for IR-Scan

  // Process the action for IR-Scan

  bool  process (TapStateMachine *tapStateMachine,

  bool  process (TapStateMachine *tapStateMachine,

private:

private:

  //! The value being shifted in

  //! The value being shifted in

  uint32_t  iRegIn;

  uint32_t  iRegIn;