64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
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* These files are taken from the MCF523X source code example package
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* which is available on the Freescale website. Freescale explicitly
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* grants the redistribution and modification of these source files.
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* The complete licensing information is available in the file
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* LICENSE_FREESCALE.TXT.
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*
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* File: mcf523x_i2c.h
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* Purpose: Register and bit definitions for the MCF523X
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*
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* Notes:
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*
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*/
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#ifndef __MCF523X_I2C_H__
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#define __MCF523X_I2C_H__
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/*********************************************************************
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*
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* I2C Module (I2C)
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*
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*********************************************************************/
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/* Register read/write macros */
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#define MCF_I2C_I2AR (*(vuint8 *)(void*)(&__IPSBAR[0x000300]))
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#define MCF_I2C_I2FDR (*(vuint8 *)(void*)(&__IPSBAR[0x000304]))
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#define MCF_I2C_I2CR (*(vuint8 *)(void*)(&__IPSBAR[0x000308]))
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#define MCF_I2C_I2SR (*(vuint8 *)(void*)(&__IPSBAR[0x00030C]))
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#define MCF_I2C_I2DR (*(vuint8 *)(void*)(&__IPSBAR[0x000310]))
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#define MCF_I2C_I2ICR (*(vuint8 *)(void*)(&__IPSBAR[0x000320]))
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/* Bit definitions and macros for MCF_I2C_I2AR */
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#define MCF_I2C_I2AR_ADR(x) (((x)&0x7F)<<1)
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/* Bit definitions and macros for MCF_I2C_I2FDR */
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#define MCF_I2C_I2FDR_IC(x) (((x)&0x3F)<<0)
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/* Bit definitions and macros for MCF_I2C_I2CR */
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#define MCF_I2C_I2CR_RSTA (0x04)
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#define MCF_I2C_I2CR_TXAK (0x08)
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#define MCF_I2C_I2CR_MTX (0x10)
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#define MCF_I2C_I2CR_MSTA (0x20)
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#define MCF_I2C_I2CR_IIEN (0x40)
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#define MCF_I2C_I2CR_IEN (0x80)
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/* Bit definitions and macros for MCF_I2C_I2SR */
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#define MCF_I2C_I2SR_RXAK (0x01)
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#define MCF_I2C_I2SR_IIF (0x02)
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#define MCF_I2C_I2SR_SRW (0x04)
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#define MCF_I2C_I2SR_IAL (0x10)
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#define MCF_I2C_I2SR_IBB (0x20)
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#define MCF_I2C_I2SR_IAAS (0x40)
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#define MCF_I2C_I2SR_ICF (0x80)
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/* Bit definitions and macros for MCF_I2C_I2ICR */
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#define MCF_I2C_I2ICR_IE (0x01)
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#define MCF_I2C_I2ICR_RE (0x02)
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#define MCF_I2C_I2ICR_TE (0x04)
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#define MCF_I2C_I2ICR_BNBE (0x08)
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/********************************************************************/
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#endif /* __MCF523X_I2C_H__ */
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