hawki2c.h

来自「mtx604在vxworks下的bsp源代码」· C头文件 代码 · 共 74 行

/* hawkI2c.h - Low-Level Falcon/Hawk I2C header file */

/* Copyright 1999 Wind River Systems, All rights reserved */
/* Copyright 1998 Motorola, Inc., All Rights Reserved */

/*
modification history
--------------------
01b,17jul99,dmw  Added MTXPlus support .
01a,15dec98,mdp  Written (from version 01a of mcpn750/ravenI2c.h)
*/

/*
DESCRIPTION
This file contains the falcon/hawk i2c definitions.
*/

#ifndef INChawkI2ch
#define INChawkI2ch

#ifdef __cplusplus
extern "C" {
#endif


/* 
 * miscellaneous defines
 */

#define I2C_TIMEOUT_COUNT 100

/*
 * i2c byte 1 (slave address) control bits
 */

#define BYTE_WRITE_MASK 0xFFFE   /* AND to clear bit 0 */
#define BYTE_READ_MASK  1        /* OR to set bit 0  */

/*
 * Falcon3/Hawk I2C registers
 */

#define I2C_HAWK_CLOCK_REG   0xFEF80090
#define I2C_HAWK_CONTROL_REG 0xFEF80098
#define I2C_HAWK_STATUS_REG  0xFEF800A0
#define I2C_HAWK_TXD_REG     0xFEF800A8
#define I2C_HAWK_RXD_REG     0xFEF800B0

/*
 * I2C_CONTROL_REG bits
 */

#define I2C_HAWK_START  (1<<3)
#define I2C_HAWK_STOP   (1<<2)
#define I2C_HAWK_ACKOUT (1<<1)
#define I2C_HAWK_ENBL   (1<<0)

/*
 * I2C_STATUS_REG bits
 */

#define I2C_HAWK_DATIN  (1<<3)
#define I2C_HAWK_ERR    (1<<2)
#define I2C_HAWK_ACKIN  (1<<1)
#define I2C_HAWK_CMPLT  (1<<0)

#define DIMM_ECC_TYPE   2               /* DIMM ECC Configuration Type */

#ifdef __cplusplus
}
#endif

#endif  /* INChawkI2ch */