?? mc68230.h
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/** * @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
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