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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [include/] [motorola/] [mc68230.h] - Rev 173
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/* * 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.OARcorp.com/rtems/license.html. * * $Id: mc68230.h,v 1.2 2001-09-27 11:59:35 chris Exp $ */ #ifndef __MC68230_H__ #define __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 rtems_unsigned8 *)(ptr)) #endif #define MC68230_WRITE( reg, data ) \ *(VOL8(PIT_ADDR+reg)) = (data) #define MC68230_READ( reg, data ) \ (data) = *(VOL8(PIT_ADDR+reg)) #endif