/* SCI, Serial Communication Interface
   30.11.00
 */

#include "H8.h"

#ifndef   SCI_H_DEFINED
#define   SCI_H_DEFINED

/* Section 11, Serial Communication Interface */ 

#define SCI_RDR *((volatile byte *) 0xffdd) /* Receive Data Register,  p. 163 */
#define SCI_TDR *((volatile byte *) 0xffdb) /* Transmit Data Register, p. 164 */
#define SCI_SMR *((volatile byte *) 0xffd8) /* Serial Mode Register,   p. 164 */
#define SCI_SCR *((volatile byte *) 0xffda) /* Serial Control Register,p. 166 */
#define SCI_SSR *((volatile byte *) 0xffdc) /* Serial Status Register, p. 169 */
#define SCI_BRR *((volatile byte *) 0xffd9) /* Bit Rate Register,      p. 171 */

/* Enable/Disable interrupts from SCI. */

static byte SCI_SCR_Saved;

#define DisableSCI { Disable; SCI_SCR_Saved = SCI_SCR;             \
                     SCI_SCR &= ~( bit7 | bit6 | bit2 ); Enable;}
#define EnableSCI  { SCI_SCR = SCI_SCR_Saved; }


#endif /* SCI_H_DEFINED */