/** * @file rtems/motorola/mc68230.h *//* * mc68230.h -- Low level support code for the Motorola 68230 Parallel *              Interface/Timer (PIT) * * Modified by Doug McBride, Colorado Space Grant College * * Format taken partly from RTEMS code and mostly from Motorola IDP user's * manual.  RTEMS copyright information below. * *  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.rtems.com/license/LICENSE. * *  $Id: mc68230.h,v 1.8 2005/01/28 08:04:27 ralf Exp $ */#ifndef _RTEMS_MOTOROLA_MC68230_H#define _RTEMS_MOTOROLA_MC68230_H/* Some Motorola IDP User manual defines: */#define PIT_ADDR	0x00c01003		/* base address of the PIT */#define REGOFF	0x04				/* Difference between addresses */#define VECT	64#define H1VECT	0x00#define H2VECT	0x01#define H3VECT	0x02#define H4VECT	0x03/* * mc68230 register offsets */#define PGCR	0x00#define PSRR	1*REGOFF#define PADDR	2*REGOFF#define PBDDR	3*REGOFF#define PCDDR	4*REGOFF#define PIVR	5*REGOFF#define PACR	6*REGOFF#define PBCR	7*REGOFF#define PADR	8*REGOFF#define PBDR	9*REGOFF#define PAAR	10*REGOFF#define PBAR	11*REGOFF#define PCDR	12*REGOFF#define PITSR	13*REGOFF#define TCR		16*REGOFF#define TIVR	17*REGOFF#define CPRH	19*REGOFF#define CPRM	20*REGOFF#define CPRL	21*REGOFF#define CNTRH	23*REGOFF#define CNTRM	24*REGOFF#define CNTRL	25*REGOFF#define TSR		26*REGOFF/* Some RTEMS style defines: */#ifndef VOL8#define VOL8( ptr )   ((volatile uint8_t   *)(ptr))#endif#define MC68230_WRITE( reg, data ) \   *(VOL8(PIT_ADDR+reg)) = (data)#define MC68230_READ( reg, data ) \   (data) = *(VOL8(PIT_ADDR+reg))#endif