1. /*--------------------------------------------------------------------------
2. AT89X52.H
3.  
4. Header file for the low voltage Flash Atmel AT89C52 and AT89LV52.
5. Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc.
6. All rights reserved.
7. --------------------------------------------------------------------------*/
8.  
9. #ifndef __AT89X52_H__
10. #define __AT89X52_H__
11.  
12. /*------------------------------------------------
13. Byte Registers
14. ------------------------------------------------*/
15. sfr P0      = 0x80;
16. sfr SP      = 0x81;
17. sfr DPL     = 0x82;
18. sfr DPH     = 0x83;
19. sfr PCON    = 0x87;
20. sfr TCON    = 0x88;
21. sfr TMOD    = 0x89;
22. sfr TL0     = 0x8A;
23. sfr TL1     = 0x8B;
24. sfr TH0     = 0x8C;
25. sfr TH1     = 0x8D;
26. sfr P1      = 0x90;
27. sfr SCON    = 0x98;
28. sfr SBUF    = 0x99;
29. sfr P2      = 0xA0;
30. sfr IE      = 0xA8;
31. sfr P3      = 0xB0;
32. sfr IP      = 0xB8;
33. sfr T2CON   = 0xC8;
34. sfr T2MOD   = 0xC9;
35. sfr RCAP2L  = 0xCA;
36. sfr RCAP2H  = 0xCB;
37. sfr TL2     = 0xCC;
38. sfr TH2     = 0xCD;
39. sfr PSW     = 0xD0;
40. sfr ACC     = 0xE0;
41. sfr B       = 0xF0;
42.  
43. /*------------------------------------------------
44. P0 Bit Registers
45. ------------------------------------------------*/
46. sbit P0_0 = 0x80;
47. sbit P0_1 = 0x81;
48. sbit P0_2 = 0x82;
49. sbit P0_3 = 0x83;
50. sbit P0_4 = 0x84;
51. sbit P0_5 = 0x85;
52. sbit P0_6 = 0x86;
53. sbit P0_7 = 0x87;
54.  
55. /*------------------------------------------------
56. PCON Bit Values
57. ------------------------------------------------*/
58. #define IDL_    0x01
59.  
60. #define STOP_   0x02
61. #define PD_     0x02    /* Alternate definition */
62.  
63. #define GF0_    0x04
64. #define GF1_    0x08
65. #define SMOD_   0x80
66.  
67. /*------------------------------------------------
68. TCON Bit Registers
69. ------------------------------------------------*/
70. sbit IT0  = 0x88;
71. sbit IE0  = 0x89;
72. sbit IT1  = 0x8A;
73. sbit IE1  = 0x8B;
74. sbit TR0  = 0x8C;
75. sbit TF0  = 0x8D;
76. sbit TR1  = 0x8E;
77. sbit TF1  = 0x8F;
78.  
79. /*------------------------------------------------
80. TMOD Bit Values
81. ------------------------------------------------*/
82. #define T0_M0_   0x01
83. #define T0_M1_   0x02
84. #define T0_CT_   0x04
85. #define T0_GATE_ 0x08
86. #define T1_M0_   0x10
87. #define T1_M1_   0x20
88. #define T1_CT_   0x40
89. #define T1_GATE_ 0x80
90.  
91. #define T1_MASK_ 0xF0
92. #define T0_MASK_ 0x0F
93.  
94. /*------------------------------------------------
95. P1 Bit Registers
96. ------------------------------------------------*/
97. sbit P1_0 = 0x90;
98. sbit P1_1 = 0x91;
99. sbit P1_2 = 0x92;
100. sbit P1_3 = 0x93;
101. sbit P1_4 = 0x94;
102. sbit P1_5 = 0x95;
103. sbit P1_6 = 0x96;
104. sbit P1_7 = 0x97;
105.  
106. sbit T2   = 0x90;       /* External input to Timer/Counter 2, clock out */
107. sbit T2EX = 0x91;       /* Timer/Counter 2 capture/reload trigger & dir ctl */
108.  
109. /*------------------------------------------------
110. SCON Bit Registers
111. ------------------------------------------------*/
112. sbit RI   = 0x98;
113. sbit TI   = 0x99;
114. sbit RB8  = 0x9A;
115. sbit TB8  = 0x9B;
116. sbit REN  = 0x9C;
117. sbit SM2  = 0x9D;
118. sbit SM1  = 0x9E;
119. sbit SM0  = 0x9F;
120.  
121. /*------------------------------------------------
122. P2 Bit Registers
123. ------------------------------------------------*/
124. sbit P2_0 = 0xA0;
125. sbit P2_1 = 0xA1;
126. sbit P2_2 = 0xA2;
127. sbit P2_3 = 0xA3;
128. sbit P2_4 = 0xA4;
129. sbit P2_5 = 0xA5;
130. sbit P2_6 = 0xA6;
131. sbit P2_7 = 0xA7;
132.  
133. /*------------------------------------------------
134. IE Bit Registers
135. ------------------------------------------------*/
136. sbit EX0  = 0xA8;       /* 1=Enable External interrupt 0 */
137. sbit ET0  = 0xA9;       /* 1=Enable Timer 0 interrupt */
138. sbit EX1  = 0xAA;       /* 1=Enable External interrupt 1 */
139. sbit ET1  = 0xAB;       /* 1=Enable Timer 1 interrupt */
140. sbit ES   = 0xAC;       /* 1=Enable Serial port interrupt */
141. sbit ET2  = 0xAD;       /* 1=Enable Timer 2 interrupt */
142.  
143. sbit EA   = 0xAF;       /* 0=Disable all interrupts */
144.  
145. /*------------------------------------------------
146. P3 Bit Registers (Mnemonics & Ports)
147. ------------------------------------------------*/
148. sbit P3_0 = 0xB0;
149. sbit P3_1 = 0xB1;
150. sbit P3_2 = 0xB2;
151. sbit P3_3 = 0xB3;
152. sbit P3_4 = 0xB4;
153. sbit P3_5 = 0xB5;
154. sbit P3_6 = 0xB6;
155. sbit P3_7 = 0xB7;
156.  
157. sbit RXD  = 0xB0;       /* Serial data input */
158. sbit TXD  = 0xB1;       /* Serial data output */
159. sbit INT0 = 0xB2;       /* External interrupt 0 */
160. sbit INT1 = 0xB3;       /* External interrupt 1 */
161. sbit T0   = 0xB4;       /* Timer 0 external input */
162. sbit T1   = 0xB5;       /* Timer 1 external input */
163. sbit WR   = 0xB6;       /* External data memory write strobe */
164. sbit RD   = 0xB7;       /* External data memory read strobe */
165.  
166. /*------------------------------------------------
167. IP Bit Registers
168. ------------------------------------------------*/
169. sbit PX0  = 0xB8;
170. sbit PT0  = 0xB9;
171. sbit PX1  = 0xBA;
172. sbit PT1  = 0xBB;
173. sbit PS   = 0xBC;
174. sbit PT2  = 0xBD;
175.  
176. /*------------------------------------------------
177. T2CON Bit Registers
178. ------------------------------------------------*/
179. sbit CP_RL2= 0xC8;      /* 0=Reload, 1=Capture select */
180. sbit C_T2 = 0xC9;       /* 0=Timer, 1=Counter */
181. sbit TR2  = 0xCA;       /* 0=Stop timer, 1=Start timer */
182. sbit EXEN2= 0xCB;       /* Timer 2 external enable */
183. sbit TCLK = 0xCC;       /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */
184. sbit RCLK = 0xCD;       /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */
185. sbit EXF2 = 0xCE;       /* Timer 2 external flag */
186. sbit TF2  = 0xCF;       /* Timer 2 overflow flag */
187.  
188. /*------------------------------------------------
189. T2MOD Bit Values
190. ------------------------------------------------*/
191. #define DCEN_   0x01    /* 1=Timer 2 can be configured as up/down counter */
192. #define T2OE_   0x02    /* Timer 2 output enable */
193.  
194. /*------------------------------------------------
195. PSW Bit Registers
196. ------------------------------------------------*/
197. sbit P    = 0xD0;
198. sbit F1   = 0xD1;
199. sbit OV   = 0xD2;
200. sbit RS0  = 0xD3;
201. sbit RS1  = 0xD4;
202. sbit F0   = 0xD5;
203. sbit AC   = 0xD6;
204. sbit CY   = 0xD7;
205.  
206. /*------------------------------------------------
207. Interrupt Vectors:
208. Interrupt Address = (Number * 8) + 3
209. ------------------------------------------------*/
210. #define IE0_VECTOR      0  /* 0x03 External Interrupt 0 */
211. #define TF0_VECTOR      1  /* 0x0B Timer 0 */
212. #define IE1_VECTOR      2  /* 0x13 External Interrupt 1 */
213. #define TF1_VECTOR      3  /* 0x1B Timer 1 */
214. #define SIO_VECTOR      4  /* 0x23 Serial port */
215.  
216. #define TF2_VECTOR      5  /* 0x2B Timer 2 */
217. #define EX2_VECTOR      5  /* 0x2B External Interrupt 2 */
218.  
219. #endif
220.  
221.  
222. 
223.