1 /*-------------------------------------------------------------------------
2 Register Declarations for the Cygnal C8051F02x Processor Range
4 Copyright (C) 2004 - Maarten Brock, sourceforge.brock@dse.nl
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with this library; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 -------------------------------------------------------------------------*/
26 sfr at 0x80 P0 ; /* PORT 0 */
27 sfr at 0x81 SP ; /* STACK POINTER */
28 sfr at 0x82 DPL ; /* DATA POINTER - LOW BYTE */
29 sfr at 0x83 DPH ; /* DATA POINTER - HIGH BYTE */
30 sfr at 0x84 P4 ; /* PORT 4 */
31 sfr at 0x85 P5 ; /* PORT 5 */
32 sfr at 0x86 P6 ; /* PORT 6 */
33 sfr at 0x87 PCON ; /* POWER CONTROL */
34 sfr at 0x88 TCON ; /* TIMER CONTROL */
35 sfr at 0x89 TMOD ; /* TIMER MODE */
36 sfr at 0x8A TL0 ; /* TIMER 0 - LOW BYTE */
37 sfr at 0x8B TL1 ; /* TIMER 1 - LOW BYTE */
38 sfr at 0x8C TH0 ; /* TIMER 0 - HIGH BYTE */
39 sfr at 0x8D TH1 ; /* TIMER 1 - HIGH BYTE */
40 sfr at 0x8E CKCON ; /* CLOCK CONTROL */
41 sfr at 0x8F PSCTL ; /* PROGRAM STORE R/W CONTROL */
42 sfr at 0x90 P1 ; /* PORT 1 */
43 sfr at 0x91 TMR3CN ; /* TIMER 3 CONTROL */
44 sfr at 0x92 TMR3RLL ; /* TIMER 3 RELOAD REGISTER - LOW BYTE */
45 sfr at 0x93 TMR3RLH ; /* TIMER 3 RELOAD REGISTER - HIGH BYTE */
46 sfr at 0x94 TMR3L ; /* TIMER 3 - LOW BYTE */
47 sfr at 0x95 TMR3H ; /* TIMER 3 - HIGH BYTE */
48 sfr at 0x96 P7 ; /* PORT 7 */
49 sfr at 0x98 SCON ; /* UART0 CONTROL */
50 sfr at 0x98 SCON0 ; /* UART0 CONTROL */
51 sfr at 0x99 SBUF ; /* UART0 BUFFER */
52 sfr at 0x99 SBUF0 ; /* UART0 BUFFER */
53 sfr at 0x9A SPI0CFG ; /* SERIAL PERIPHERAL INTERFACE 0 CONFIGURATION */
54 sfr at 0x9B SPI0DAT ; /* SERIAL PERIPHERAL INTERFACE 0 DATA */
55 sfr at 0x9C ADC1 ; /* ADC 1 DATA */
56 sfr at 0x9D SPI0CKR ; /* SERIAL PERIPHERAL INTERFACE 0 CLOCK RATE CONTROL */
57 sfr at 0x9E CPT0CN ; /* COMPARATOR 0 CONTROL */
58 sfr at 0x9F CPT1CN ; /* COMPARATOR 1 CONTROL */
59 sfr at 0xA0 P2 ; /* PORT 2 */
60 sfr at 0xA1 EMI0TC ; /* External Memory Timing Control */
61 sfr at 0xA3 EMI0CF ; /* EMIF CONFIGURATION */
62 sfr at 0xA4 PRT0CF ; /* PORT 0 CONFIGURATION */
63 sfr at 0xA4 P0MDOUT ; /* PORT 0 OUTPUT MODE CONFIGURATION */
64 sfr at 0xA5 PRT1CF ; /* PORT 1 CONFIGURATION */
65 sfr at 0xA5 P1MDOUT ; /* PORT 1 OUTPUT MODE CONFIGURATION */
66 sfr at 0xA6 PRT2CF ; /* PORT 2 CONFIGURATION */
67 sfr at 0xA6 P2MDOUT ; /* PORT 2 OUTPUT MODE CONFIGURATION */
68 sfr at 0xA7 PRT3CF ; /* PORT 3 CONFIGURATION */
69 sfr at 0xA7 P3MDOUT ; /* PORT 3 OUTPUT MODE CONFIGURATION */
70 sfr at 0xA8 IE ; /* INTERRUPT ENABLE */
71 sfr at 0xA9 SADDR0 ; /* UART0 Slave Address */
72 sfr at 0xAA ADC1CN ; /* ADC 1 CONTROL */
73 sfr at 0xAB ADC1CF ; /* ADC 1 CONFIGURATION */
74 sfr at 0xAC AMX1SL ; /* ADC 1 MUX CHANNEL SELECTION */
75 sfr at 0xAD P3IF ; /* PORT 3 EXTERNAL INTERRUPT FLAGS */
76 sfr at 0xAE SADEN1 ; /* UART1 Slave Address Enable */
77 sfr at 0xAF EMI0CN ; /* EXTERNAL MEMORY INTERFACE CONTROL */
78 sfr at 0xAF _XPAGE ; /* XDATA/PDATA PAGE */
79 sfr at 0xB0 P3 ; /* PORT 3 */
80 sfr at 0xB1 OSCXCN ; /* EXTERNAL OSCILLATOR CONTROL */
81 sfr at 0xB2 OSCICN ; /* INTERNAL OSCILLATOR CONTROL */
82 sfr at 0xB5 P74OUT ; /* PORT 4 THROUGH 7 OUTPUT MODE CONFIGURATION */
83 sfr at 0xB6 FLSCL ; /* FLASH MEMORY TIMING PRESCALER */
84 sfr at 0xB7 FLACL ; /* FLASH ACESS LIMIT */
85 sfr at 0xB8 IP ; /* INTERRUPT PRIORITY */
86 sfr at 0xB9 SADEN0 ; /* UART0 Slave Address Enable */
87 sfr at 0xBA AMX0CF ; /* ADC 0 MUX CONFIGURATION */
88 sfr at 0xBB AMX0SL ; /* ADC 0 MUX CHANNEL SELECTION */
89 sfr at 0xBC ADC0CF ; /* ADC 0 CONFIGURATION */
90 sfr at 0xBD P1MDIN ; /* PORT 1 Input Mode */
91 sfr at 0xBE ADC0L ; /* ADC 0 DATA - LOW BYTE */
92 sfr at 0xBF ADC0H ; /* ADC 0 DATA - HIGH BYTE */
93 sfr at 0xC0 SMB0CN ; /* SMBUS 0 CONTROL */
94 sfr at 0xC1 SMB0STA ; /* SMBUS 0 STATUS */
95 sfr at 0xC2 SMB0DAT ; /* SMBUS 0 DATA */
96 sfr at 0xC3 SMB0ADR ; /* SMBUS 0 SLAVE ADDRESS */
97 sfr at 0xC4 ADC0GTL ; /* ADC 0 GREATER-THAN REGISTER - LOW BYTE */
98 sfr at 0xC5 ADC0GTH ; /* ADC 0 GREATER-THAN REGISTER - HIGH BYTE */
99 sfr at 0xC6 ADC0LTL ; /* ADC 0 LESS-THAN REGISTER - LOW BYTE */
100 sfr at 0xC7 ADC0LTH ; /* ADC 0 LESS-THAN REGISTER - HIGH BYTE */
101 sfr at 0xC8 T2CON ; /* TIMER 2 CONTROL */
102 sfr at 0xC9 T4CON ; /* TIMER 4 CONTROL */
103 sfr at 0xCA RCAP2L ; /* TIMER 2 CAPTURE REGISTER - LOW BYTE */
104 sfr at 0xCB RCAP2H ; /* TIMER 2 CAPTURE REGISTER - HIGH BYTE */
105 sfr at 0xCC TL2 ; /* TIMER 2 - LOW BYTE */
106 sfr at 0xCD TH2 ; /* TIMER 2 - HIGH BYTE */
107 sfr at 0xCF SMB0CR ; /* SMBUS 0 CLOCK RATE */
108 sfr at 0xD0 PSW ; /* PROGRAM STATUS WORD */
109 sfr at 0xD1 REF0CN ; /* VOLTAGE REFERENCE 0 CONTROL */
110 sfr at 0xD2 DAC0L ; /* DAC 0 REGISTER - LOW BYTE */
111 sfr at 0xD3 DAC0H ; /* DAC 0 REGISTER - HIGH BYTE */
112 sfr at 0xD4 DAC0CN ; /* DAC 0 CONTROL */
113 sfr at 0xD5 DAC1L ; /* DAC 1 REGISTER - LOW BYTE */
114 sfr at 0xD6 DAC1H ; /* DAC 1 REGISTER - HIGH BYTE */
115 sfr at 0xD7 DAC1CN ; /* DAC 1 CONTROL */
116 sfr at 0xD8 PCA0CN ; /* PCA 0 COUNTER CONTROL */
117 sfr at 0xD9 PCA0MD ; /* PCA 0 COUNTER MODE */
118 sfr at 0xDA PCA0CPM0 ; /* CONTROL REGISTER FOR PCA 0 MODULE 0 */
119 sfr at 0xDB PCA0CPM1 ; /* CONTROL REGISTER FOR PCA 0 MODULE 1 */
120 sfr at 0xDC PCA0CPM2 ; /* CONTROL REGISTER FOR PCA 0 MODULE 2 */
121 sfr at 0xDD PCA0CPM3 ; /* CONTROL REGISTER FOR PCA 0 MODULE 3 */
122 sfr at 0xDE PCA0CPM4 ; /* CONTROL REGISTER FOR PCA 0 MODULE 4 */
123 sfr at 0xE0 ACC ; /* ACCUMULATOR */
124 sfr at 0xE1 XBR0 ; /* DIGITAL CROSSBAR CONFIGURATION REGISTER 0 */
125 sfr at 0xE2 XBR1 ; /* DIGITAL CROSSBAR CONFIGURATION REGISTER 1 */
126 sfr at 0xE3 XBR2 ; /* DIGITAL CROSSBAR CONFIGURATION REGISTER 2 */
127 sfr at 0xE4 RCAP4L ; /* TIMER 4 CAPTURE REGISTER - LOW BYTE */
128 sfr at 0xE5 RCAP4H ; /* TIMER 4 CAPTURE REGISTER - HIGH BYTE */
129 sfr at 0xE6 EIE1 ; /* EXTERNAL INTERRUPT ENABLE 1 */
130 sfr at 0xE7 EIE2 ; /* EXTERNAL INTERRUPT ENABLE 2 */
131 sfr at 0xE8 ADC0CN ; /* ADC 0 CONTROL */
132 sfr at 0xE9 PCA0L ; /* PCA 0 TIMER - LOW BYTE */
133 sfr at 0xEA PCA0CPL0 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 0 - LOW BYTE */
134 sfr at 0xEB PCA0CPL1 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 1 - LOW BYTE */
135 sfr at 0xEC PCA0CPL2 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 2 - LOW BYTE */
136 sfr at 0xED PCA0CPL3 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 3 - LOW BYTE */
137 sfr at 0xEE PCA0CPL4 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 4 - LOW BYTE */
138 sfr at 0xEF RSTSRC ; /* RESET SOURCE */
139 sfr at 0xF0 B ; /* B REGISTER */
140 sfr at 0xF1 SCON1 ; /* UART1 CONTROL */
141 sfr at 0xF2 SBUF1 ; /* UART1 DATA */
142 sfr at 0xF3 SADDR1 ; /* UART1 Slave Address */
143 sfr at 0xF4 TL4 ; /* TIMER 4 DATA - LOW BYTE */
144 sfr at 0xF5 TH4 ; /* TIMER 4 DATA - HIGH BYTE */
145 sfr at 0xF6 EIP1 ; /* EXTERNAL INTERRUPT PRIORITY REGISTER 1 */
146 sfr at 0xF7 EIP2 ; /* EXTERNAL INTERRUPT PRIORITY REGISTER 2 */
147 sfr at 0xF8 SPI0CN ; /* SERIAL PERIPHERAL INTERFACE 0 CONTROL */
148 sfr at 0xF9 PCA0H ; /* PCA 0 TIMER - HIGH BYTE */
149 sfr at 0xFA PCA0CPH0 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 0 - HIGH BYTE */
150 sfr at 0xFB PCA0CPH1 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 1 - HIGH BYTE */
151 sfr at 0xFC PCA0CPH2 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 2 - HIGH BYTE */
152 sfr at 0xFD PCA0CPH3 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 3 - HIGH BYTE */
153 sfr at 0xFE PCA0CPH4 ; /* CAPTURE/COMPARE REGISTER FOR PCA 0 MODULE 4 - HIGH BYTE */
154 sfr at 0xFF WDTCN ; /* WATCHDOG TIMER CONTROL */
170 sbit at 0x88 IT0 ; /* EXT. INTERRUPT 0 TYPE */
171 sbit at 0x89 IE0 ; /* EXT. INTERRUPT 0 EDGE FLAG */
172 sbit at 0x8A IT1 ; /* EXT. INTERRUPT 1 TYPE */
173 sbit at 0x8B IE1 ; /* EXT. INTERRUPT 1 EDGE FLAG */
174 sbit at 0x8C TR0 ; /* TIMER 0 ON/OFF CONTROL */
175 sbit at 0x8D TF0 ; /* TIMER 0 OVERFLOW FLAG */
176 sbit at 0x8E TR1 ; /* TIMER 1 ON/OFF CONTROL */
177 sbit at 0x8F TF1 ; /* TIMER 1 OVERFLOW FLAG */
190 sbit at 0x98 RI ; /* SCON.0 - RECEIVE INTERRUPT FLAG */
191 sbit at 0x98 RI0 ; /* SCON.0 - RECEIVE INTERRUPT FLAG */
192 sbit at 0x99 TI ; /* SCON.1 - TRANSMIT INTERRUPT FLAG */
193 sbit at 0x99 TI0 ; /* SCON.1 - TRANSMIT INTERRUPT FLAG */
194 sbit at 0x9A RB8 ; /* SCON.2 - RECEIVE BIT 8 */
195 sbit at 0x9A RB80 ; /* SCON.2 - RECEIVE BIT 8 */
196 sbit at 0x9B TB8 ; /* SCON.3 - TRANSMIT BIT 8 */
197 sbit at 0x9B TB80 ; /* SCON.3 - TRANSMIT BIT 8 */
198 sbit at 0x9C REN ; /* SCON.4 - RECEIVE ENABLE */
199 sbit at 0x9C REN0 ; /* SCON.4 - RECEIVE ENABLE */
200 sbit at 0x9D SM2 ; /* SCON.5 - MULTIPROCESSOR COMMUNICATION ENABLE */
201 sbit at 0x9D SM20 ; /* SCON.5 - MULTIPROCESSOR COMMUNICATION ENABLE */
202 sbit at 0x9D MCE0 ; /* SCON.5 - MULTIPROCESSOR COMMUNICATION ENABLE */
203 sbit at 0x9E SM1 ; /* SCON.6 - SERIAL MODE CONTROL BIT 1 */
204 sbit at 0x9E SM10 ; /* SCON.6 - SERIAL MODE CONTROL BIT 1 */
205 sbit at 0x9F SM0 ; /* SCON.7 - SERIAL MODE CONTROL BIT 0 */
206 sbit at 0x9F SM00 ; /* SCON.7 - SERIAL MODE CONTROL BIT 0 */
207 sbit at 0x9F S0MODE ; /* SCON.7 - SERIAL MODE CONTROL BIT 0 */
220 sbit at 0xA8 EX0 ; /* EXTERNAL INTERRUPT 0 ENABLE */
221 sbit at 0xA9 ET0 ; /* TIMER 0 INTERRUPT ENABLE */
222 sbit at 0xAA EX1 ; /* EXTERNAL INTERRUPT 1 ENABLE */
223 sbit at 0xAB ET1 ; /* TIMER 1 INTERRUPT ENABLE */
224 sbit at 0xAC ES ; /* SERIAL PORT 0 INTERRUPT ENABLE */
225 sbit at 0xAC ES0 ; /* SERIAL PORT 0 INTERRUPT ENABLE */
226 sbit at 0xAD ET2 ; /* TIMER 2 INTERRUPT ENABLE */
227 sbit at 0xAF EA ; /* GLOBAL INTERRUPT ENABLE */
240 sbit at 0xB8 PX0 ; /* EXTERNAL INTERRUPT 0 PRIORITY */
241 sbit at 0xB9 PT0 ; /* TIMER 0 PRIORITY */
242 sbit at 0xBA PX1 ; /* EXTERNAL INTERRUPT 1 PRIORITY */
243 sbit at 0xBB PT1 ; /* TIMER 1 PRIORITY */
244 sbit at 0xBC PS ; /* SERIAL PORT PRIORITY */
245 sbit at 0xBD PT2 ; /* TIMER 2 PRIORITY */
248 sbit at 0xC0 SMBTOE ; /* SMBUS 0 TIMEOUT ENABLE */
249 sbit at 0xC1 SMBFTE ; /* SMBUS 0 FREE TIMER ENABLE */
250 sbit at 0xC2 AA ; /* SMBUS 0 ASSERT/ACKNOWLEDGE FLAG */
251 sbit at 0xC3 SI ; /* SMBUS 0 INTERRUPT PENDING FLAG */
252 sbit at 0xC4 STO ; /* SMBUS 0 STOP FLAG */
253 sbit at 0xC5 STA ; /* SMBUS 0 START FLAG */
254 sbit at 0xC6 ENSMB ; /* SMBUS 0 ENABLE */
255 sbit at 0xC7 BUSY ; /* SMBUS 0 BUSY */
258 sbit at 0xC8 CPRL2 ; /* CAPTURE OR RELOAD SELECT */
259 sbit at 0xC9 CT2 ; /* TIMER OR COUNTER SELECT */
260 sbit at 0xCA TR2 ; /* TIMER 2 ON/OFF CONTROL */
261 sbit at 0xCB EXEN2 ; /* TIMER 2 EXTERNAL ENABLE FLAG */
262 sbit at 0xCC TCLK ; /* TRANSMIT CLOCK FLAG */
263 sbit at 0xCD RCLK ; /* RECEIVE CLOCK FLAG */
264 sbit at 0xCE EXF2 ; /* EXTERNAL FLAG */
265 sbit at 0xCF TF2 ; /* TIMER 2 OVERFLOW FLAG */
268 sbit at 0xD0 P ; /* ACCUMULATOR PARITY FLAG */
269 sbit at 0xD1 F1 ; /* USER FLAG 1 */
270 sbit at 0xD2 OV ; /* OVERFLOW FLAG */
271 sbit at 0xD3 RS0 ; /* REGISTER BANK SELECT 0 */
272 sbit at 0xD4 RS1 ; /* REGISTER BANK SELECT 1 */
273 sbit at 0xD5 F0 ; /* USER FLAG 0 */
274 sbit at 0xD6 AC ; /* AUXILIARY CARRY FLAG */
275 sbit at 0xD7 CY ; /* CARRY FLAG */
278 sbit at 0xD8 CCF0 ; /* PCA 0 MODULE 0 INTERRUPT FLAG */
279 sbit at 0xD9 CCF1 ; /* PCA 0 MODULE 1 INTERRUPT FLAG */
280 sbit at 0xDA CCF2 ; /* PCA 0 MODULE 2 INTERRUPT FLAG */
281 sbit at 0xDB CCF3 ; /* PCA 0 MODULE 3 INTERRUPT FLAG */
282 sbit at 0xDC CCF4 ; /* PCA 0 MODULE 4 INTERRUPT FLAG */
283 sbit at 0xDE CR ; /* PCA 0 COUNTER RUN CONTROL BIT */
284 sbit at 0xDF CF ; /* PCA 0 COUNTER OVERFLOW FLAG */
287 sbit at 0xE8 ADLJST ; /* ADC 0 RIGHT JUSTIFY DATA BIT */
288 sbit at 0xE8 AD0LJST ; /* ADC 0 RIGHT JUSTIFY DATA BIT */
289 sbit at 0xE9 ADWINT ; /* ADC 0 WINDOW COMPARE INTERRUPT FLAG */
290 sbit at 0xE9 AD0WINT ; /* ADC 0 WINDOW COMPARE INTERRUPT FLAG */
291 sbit at 0xEA ADSTM0 ; /* ADC 0 START OF CONVERSION MODE BIT 0 */
292 sbit at 0xEA AD0CM0 ; /* ADC 0 START OF CONVERSION MODE BIT 0 */
293 sbit at 0xEB ADSTM1 ; /* ADC 0 START OF CONVERSION MODE BIT 1 */
294 sbit at 0xEB AD0CM1 ; /* ADC 0 START OF CONVERSION MODE BIT 1 */
295 sbit at 0xEC ADBUSY ; /* ADC 0 BUSY FLAG */
296 sbit at 0xEC AD0BUSY ; /* ADC 0 BUSY FLAG */
297 sbit at 0xED ADCINT ; /* ADC 0 CONVERISION COMPLETE INTERRUPT FLAG */
298 sbit at 0xED AD0INT ; /* ADC 0 CONVERISION COMPLETE INTERRUPT FLAG */
299 sbit at 0xEE ADCTM ; /* ADC 0 TRACK MODE */
300 sbit at 0xEE AD0TM ; /* ADC 0 TRACK MODE */
301 sbit at 0xEF ADCEN ; /* ADC 0 ENABLE */
302 sbit at 0xEF AD0EN ; /* ADC 0 ENABLE */
305 sbit at 0xF8 SPIEN ; /* SPI 0 SPI ENABLE */
306 sbit at 0xF9 MSTEN ; /* SPI 0 MASTER ENABLE */
307 sbit at 0xFA SLVSEL ; /* SPI 0 SLAVE SELECT */
308 sbit at 0xFB TXBSY ; /* SPI 0 TX BUSY FLAG */
309 sbit at 0xFC RXOVRN ; /* SPI 0 RX OVERRUN FLAG */
310 sbit at 0xFD MODF ; /* SPI 0 MODE FAULT FLAG */
311 sbit at 0xFE WCOL ; /* SPI 0 WRITE COLLISION FLAG */
312 sbit at 0xFF SPIF ; /* SPI 0 INTERRUPT FLAG */
315 /* Predefined SFR Bit Masks */
317 #define IDLE 0x01 /* PCON */
318 #define STOP 0x02 /* PCON */
319 #define SMOD0 0x80 /* PCON */
320 #define TF3 0x80 /* TMR3CN */
321 #define CPFIF 0x10 /* CPTnCN */
322 #define CPRIF 0x20 /* CPTnCN */
323 #define CPOUT 0x40 /* CPTnCN */
324 #define TR4 0x04 /* T4CON */
325 #define TF4 0x80 /* T4CON */
326 #define ECCF 0x01 /* PCA0CPMn */
327 #define PWM 0x02 /* PCA0CPMn */
328 #define TOG 0x04 /* PCA0CPMn */
329 #define MAT 0x08 /* PCA0CPMn */
330 #define CAPN 0x10 /* PCA0CPMn */
331 #define CAPP 0x20 /* PCA0CPMn */
332 #define ECOM 0x40 /* PCA0CPMn */
333 #define PWM16 0x80 /* PCA0CPMn */
334 #define PORSF 0x02 /* RSTSRC */
335 #define SWRSF 0x10 /* RSTSRC */
336 #define RI1 0x01 /* SCON1 */
337 #define TI1 0x02 /* SCON1 */
338 #define RB81 0x04 /* SCON1 */
339 #define TB81 0x08 /* SCON1 */
340 #define REN1 0x10 /* SCON1 */
341 #define SM21 0x20 /* SCON1 */
342 #define SM11 0x40 /* SCON1 */
343 #define SM01 0x80 /* SCON1 */