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diff --git a/src/lib/pmc_dcm.h b/src/lib/pmc_dcm.h
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+++ b/src/lib/pmc_dcm.h
@@ -0,0 +1,102 @@
+#ifndef __PMC_DCM_H__
+#define __PMC_DCM_H__
+
+// $Id: pmc_dcm.h,v 1.2 2014/02/03 01:30:25 daviddu Exp $
+// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/lib/pmc_dcm.h,v $
+//-----------------------------------------------------------------------------
+// *! (C) Copyright International Business Machines Corp. 2013
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+//-----------------------------------------------------------------------------
+
+/// \file pmc_dcm.h
+/// \brief Generic PMC Interhchip Communication Mechanism 
+
+
+/// PMC-DCM Return Code
+#define PMC_DCM_SUCCESS              0
+#define PMC_DCM_ARG_NULL_OBJECT_SEND 0x00326501 //ssx panic
+#define PMC_DCM_ARG_NULL_OBJECT_RECV 0x00326501 //ssx panic
+#define PMC_DCM_INTCHP_DISABLED_SEND 0x00326502 //ssx panic
+#define PMC_DCM_INTCHP_DISABLED_RECV 0x00326502 //ssx panic
+#define PMC_DCM_OUTSTANDING_TRANSFER 0x00326503 //user handle
+#define PMC_DCM_INTCHP_CMD_ONLY_MTOS 0x00326504 //ssx panic
+#define PMC_DCM_INTCHP_CMD_ONLY_STOM 0x00326504 //ssx panic
+#define PMC_DCM_INVALID_COMMAND_CODE 0x00326505 //ssx panic
+#define PMC_DCM_RECEIVE_NOT_DETECTED 0x00326506 //user handle
+#define PMC_DCM_RECEIVE_NOT_MSG_TYPE 0x00326507 //ssx panic
+    
+/// PMC Interchip Command Code
+#define PMC_IC_GPA_CC           1  //0b0001
+#define PMC_IC_GPA_ACK_CC       2  //0b0010
+#define PMC_IC_GAR_CC           3  //0b0011
+#define PMC_IC_PING_CC          4  //0b0100
+#define PMC_IC_PING_ACK_CC      6  //0b0110
+#define PMC_IC_MSG_CC           8  //0b1000
+#define PMC_IC_MSG_NACK_CC      10 //0b1010
+#define PMC_IC_MSG_ACK_CC       11 //0b1011
+#define PMC_IC_ERROR_CC         15 //0b1111
+
+#ifndef __ASSEMBLER__
+
+/// PMC-DCM low-level (hardware) packet
+
+typedef union PmcInterchipPacket { 
+    uint32_t value;
+    struct {
+        /// Hardware command code
+        uint8_t cmd_code : 4;
+        /// Hardware command extension; GPSM-DCM command code
+        uint8_t cmd_ext : 4;
+        /// Payload. The plan of record is to use payload[2] as HW-generated ECC.
+        uint8_t payload[3];
+    } fields;
+} PmcDcmPacket;
+
+/// Macro to set and get payload field
+#define SET_PAYLOAD_FIELD(value) (value << 8) & 0xFFFF00
+#define GET_PAYLOAD_FIELD(value) (value & 0xFFFF00) >> 8
+
+
+/// low-level PMC-DCM interchip communication methods
+
+int
+pmc_dcm_send(PmcDcmPacket* hwPacket);
+
+int
+pmc_dcm_receive(PmcDcmPacket* hwPacket);
+
+void
+_pmc_dcm_send(uint32_t *value);
+
+void
+_pmc_dcm_receive(uint32_t *value);
+
+int
+pmc_dcm_check_ic_command(int cmd_code);
+
+int
+pmc_dcm_if_dcm_master();
+
+void
+pmc_dcm_set_interchip_mode(int master);
+
+int
+pmc_dcm_if_interchip_interface_enabled();
+
+void
+pmc_dcm_set_interchip_interface(int enable);
+
+int
+pmc_dcm_if_channel_busy();
+
+int
+pmc_dcm_if_new_message();
+
+void
+pmc_dcm_init(int master_or_slace);
+
+#endif  /* __ASSEMBLER__ */
+
+#endif  /* __PMC_DCM_H__ */
+