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diff --git a/ReferenceCode/AcpiTables/SampleCode/Lpit/lpit.h b/ReferenceCode/AcpiTables/SampleCode/Lpit/lpit.h
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+/*++
+  This file contains an 'Intel Peripheral Driver' and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement
+  --*/
+/*++
+
+Copyright (c)  2013 Intel Corporation. All rights reserved
+This software and associated documentation (if any) is furnished
+under a license and may only be used or copied in accordance
+with the terms of the license. Except as permitted by such
+license, no part of this software or documentation may be
+reproduced, stored in a retrieval system, or transmitted in any
+form or by any means without the express written consent of
+Intel Corporation.
+
+
+Module Name:
+
+Lpit.h
+
+Abstract:
+
+This file describes the contents of the ACPI Low Power Idle Table (LPIT).
+All changes to the LPIT contents should be done in this file.
+
+
+
+--*/
+
+#ifndef _LPIT_H_
+#define _LPIT_H_
+
+//
+// Statements that include other files
+//
+
+#include "LowPowerIdleTable.h"
+
+//
+// Defines for LPIT table, some are HSW ULT specific
+//
+
+
+// signature "LPIT"
+#define EFI_ACPI_LOW_POWER_IDLE_TABLE_SIGNATURE  0x5449504c
+
+#define EFI_ACPI_OEM_LPIT_REVISION                      0x00000000
+#define EFI_ACPI_CREATER_ID          0x2e494d41 //"AMI."
+#define EFI_ACPI_CREATER_REVISION    0x5
+#define EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE    0x0
+#define EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG  0x0
+#define EFI_ACPI_LOW_POWER_IDLE_NO_RES_COUNTER_FLAG  0x2
+#define EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_TSC  0x0
+
+//
+// LPI state count (only 1 on HSW ULT)
+//
+
+#define EFI_ACPI_HSW_LPI_STATE_COUNT            2
+
+//
+// LPI TRIGGER (HW C10 on HSW ULT) 
+//
+#define EFI_ACPI_HSW_LPI_TRIGGER {0x7F,0x1,0x2,0x0,0x60}
+
+//
+// LPI residency counter (HW C10 on HSW ULT)
+//
+#define  EFI_ACPI_HSW_LPI_RES_COUNTER   {0x7F,64,0x0,0x0,0x632}
+
+//
+// LPI DUMMY COUNTER
+//
+#define  EFI_ACPI_HSW_DUMMY_RES_COUNTER   {0x0,0,0x0,0x0,0x0}
+
+
+//
+// LPI break-even residency in us (HW C10 on HSW ULT)
+//
+#define  EFI_ACPI_HSW_LPI_MIN_RES   30000
+
+//
+// LPI latency in us (HW C10 on HSW ULT) 
+//  
+#define  EFI_ACPI_HSW_LPI_LATENCY   3000
+
+//
+// LPI ID (HW C10 on HSW ULT) 
+//  
+#define  EFI_ACPI_HSW_LPI_AUDIO_ID   0
+
+//
+// LPI ID (HW C10 on HSW ULT) 
+//  
+#define  EFI_ACPI_HSW_LPI_CS_ID   1
+
+//
+//  LPI ACPI table header
+//
+
+#pragma pack(1)
+
+typedef struct _EFI_ACPI_LOW_POWER_IDLE_TABLE {
+  EFI_ACPI_DESCRIPTION_HEADER             Header;
+  EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR     LpiStates[EFI_ACPI_HSW_LPI_STATE_COUNT];
+} EFI_ACPI_LOW_POWER_IDLE_TABLE;
+
+#pragma pack()
+
+
+#endif //_LPIT_H_