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/*  z8530.h

 *

 *  This include file defines information related to a Zilog Z8530

 *  SCC Chip.  It is a IO mapped part.

 *

 *  Input parameters:   NONE

 *

 *  Output parameters:  NONE

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: z8530.h,v 1.2 2001-09-27 11:59:36 chris Exp $

 */

#ifndef __Z8530_h

#define __Z8530_h

#ifdef __cplusplus

extern "C" {

#endif

/* macros */

#define VOL8( ptr )   ((volatile rtems_unsigned8 *)(ptr))

#define Z8x30_STATE0 ( z8530 ) \

  { char *garbage; \

    (garbage) = *(VOL8(z8530)) \

  }

#define Z8x30_WRITE_CONTROL( z8530, reg, data ) \

   *(VOL8(z8530)) = (reg); \

   *(VOL8(z8530)) = (data)

#define Z8x30_READ_CONTROL( z8530, reg, data ) \

   *(VOL8(z8530)) = (reg); \

   (data) = *(VOL8(z8530))

#define Z8x30_WRITE_DATA( z8530, data ) \

   *(VOL8(z8530)) = (data);

#define Z8x30_READ_DATA( z8530, data ) \

   (data) = *(VOL8(z8530));

/* RR_0 Bit Definitions */

#define RR_0_TX_BUFFER_EMPTY   0x04

#define RR_0_RX_DATA_AVAILABLE 0x01

/* read registers */

#define RR_0       0x00

#define RR_1       0x01

#define RR_2       0x02

#define RR_3       0x03

#define RR_4       0x04

#define RR_5       0x05

#define RR_6       0x06

#define RR_7       0x07

#define RR_8       0x08

#define RR_9       0x09

#define RR_10      0x0A

#define RR_11      0x0B

#define RR_12      0x0C

#define RR_13      0x0D

#define RR_14      0x0E

#define RR_15      0x0F

/* write registers */

#define WR_0       0x00

#define WR_1       0x01

#define WR_2       0x02

#define WR_3       0x03

#define WR_4       0x04

#define WR_5       0x05

#define WR_6       0x06

#define WR_7       0x07

#define WR_8       0x08

#define WR_9       0x09

#define WR_10      0x0A

#define WR_11      0x0B

#define WR_12      0x0C

#define WR_13      0x0D

#define WR_14      0x0E

#define WR_15      0x0F

#ifdef __cplusplus

}

#endif

#endif