sdcc/device/include/mcs51/at89Sx051.h

   1 /*-------------------------------------------------------------------------
   2    at89Sx051.h - Register Declarations for Atmel AT89S2051 and AT89S4051
   3    Processors
   4
   5    Copyright (C) 2009, Ben Boeckel mathstuf AT gmail.com
   6
   7    This library is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published by the
   9    Free Software Foundation; either version 2, or (at your option) any
  10    later version.
  11
  12    This library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this library; see the file COPYING. If not, write to the
  19    Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  20    MA 02110-1301, USA.
  21
  22    As a special exception, if you link this library with other files,
  23    some of which are compiled with SDCC, to produce an executable,
  24    this library does not by itself cause the resulting executable to
  25    be covered by the GNU General Public License. This exception does
  26    not however invalidate any other reasons why the executable file
  27    might be covered by the GNU General Public License.
  28 -------------------------------------------------------------------------*/
  29
  30 /*-------------------------------------------------------------------------
  31    based on 8051.h (8051.h must be in mcs51 subdirectory)
  32
  33    KEIL C compatible definitions are included
  34 -------------------------------------------------------------------------*/
  35
  36 #ifndef AT89Sx051_H
  37 #define AT89Sx051_H
  38
  39 #include <at89x051.h>     /* at89Sx051 adds to at89Cx051 definitions */
  40
  41 /* BYTE Register */
  42 __sfr __at (0x8F) CLKREG ;
  43 __sfr __at (0x97) ACSR   ;
  44 __sfr __at (0xA9) SADDR  ;
  45 __sfr __at (0xB7) IPH    ;
  46 __sfr __at (0xB9) SADEN  ;
  47
  48 /* BIT register */
  49 /* IE */
  50 __sbit __at (0xAE) EC    ;
  51
  52 /* IP */
  53 __sbit __at (0xBE) PC    ;
  54
  55 /* BIT definitions for bits that are not directly accessible */
  56 /* PCON */
  57 #define PWMEN            0x20
  58 #define SMOD0            0x40
  59 #define SMOD1            0x80
  60
  61 /* CLKREG */
  62 #define X2               0x01
  63 #define PWDEX            0x02
  64
  65 /* ACSR */
  66 #define CM0              0x01
  67 #define CM1              0x02
  68 #define CM2              0x04
  69 #define CEN              0x08
  70 #define CF               0x10
  71
  72 /* IPH */
  73 #define PX0H             0x01
  74 #define PT0H             0x02
  75 #define PX1H             0x04
  76 #define PT1H             0x08
  77 #define PSH              0x10
  78 #define PCH              0x40
  79
  80
  81 /* Interrupt numbers: address = (number * 8) + 3 */
  82 #define CF0_VECTOR       6      /* 0x33 analog comparator */
  83
  84 #endif