sysi2cmpc107.h

This file contains board-specific information for the Motorola LoPEC in support of the lopec BSP. S

/* sysI2cMpc107.h - I2C Driver Header Module */

/* Copyright 1984-2002 Wind River Systems, Inc. */
/* Copyright 1998-2002 Motorola, Inc. All Rights Reserved */

/*
modification history
--------------------
01c,12jun02,kab  SPR 74987: cplusplus protection
01b,08dec00,djs  changed kahlua names to MPC107
01a,02nov00,djs  created from 01c,15jun00,dmw
*/

/*
DESCRIPTION

I2C Driver Header (Low Level Routines) Module
MPC107 Memory Controller

Notes:
	1. The low level routines were modeled after the original
	   driver written by Pamela Wolfe.
*/

#ifndef	INCsysI2cMpc107h
#define	INCsysI2cMpc107h

#ifdef __cplusplus
    extern "C" {
#endif

/* MPC107 Register masks */

#define MPC107_I2C_ADDRESS_REG_MASK 	0x000000FE
#define MPC107_I2C_FREQ_DIV_REG_MASK	0x0000003F
#define MPC107_I2C_CONTROL_REG_MASK	0x000000FC
#define MPC107_I2C_STATUS_REG_MASK	0x000000F7
#define MPC107_I2C_DATA_REG_MASK	0x000000FF


/* MPC107 Control register values */

#define MPC107_I2C_CONTROL_REG_MEN	(1<<7)	/* module enable */
#define MPC107_I2C_CONTROL_REG_MIEN	(1<<6)	/* module interrupt enable */
#define MPC107_I2C_CONTROL_REG_MSTA	(1<<5)	/* master/slave mode */
#define MPC107_I2C_CONTROL_REG_MTX	(1<<4)	/* transmit/receiver mode  */
#define MPC107_I2C_CONTROL_REG_TXAK	(1<<3)	/* transfer ack enable */
#define MPC107_I2C_CONTROL_REG_RSTA	(1<<2)	/* repeat start */


/* MPC107 Status register values */

#define MPC107_I2C_STATUS_REG_MCF	(1<<7)	/* data transferring */
#define MPC107_I2C_STATUS_REG_MAAS	(1<<6)	/* addressed as a slave */
#define MPC107_I2C_STATUS_REG_MBB	(1<<5)	/* bus busy */
#define MPC107_I2C_STATUS_REG_MAL	(1<<4)	/* arbitration lost */
#define MPC107_I2C_STATUS_REG_SRW	(1<<2)	/* slave read/write */
#define MPC107_I2C_STATUS_REG_MIF	(1<<1)	/* module interrupt */
#define MPC107_I2C_STATUS_REG_RXAK	(1<<0)	/* receive ack */

#ifdef __cplusplus
    }
#endif

#endif /* INCsysI2cMpc107h */