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1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * register description for HopeRf rf69 radio module
4  *
5  * Copyright (C) 2016 Wolf-Entwicklungen
6  *	Marcus Wolf <linux@wolf-entwicklungen.de>
7  */
8 
9 /*******************************************/
10 /* RF69 register addresses		   */
11 /*******************************************/
12 #define  REG_FIFO			0x00
13 #define  REG_OPMODE			0x01
14 #define  REG_DATAMODUL			0x02
15 #define  REG_BITRATE_MSB		0x03
16 #define  REG_BITRATE_LSB		0x04
17 #define  REG_FDEV_MSB			0x05
18 #define  REG_FDEV_LSB			0x06
19 #define  REG_FRF_MSB			0x07
20 #define  REG_FRF_MID			0x08
21 #define  REG_FRF_LSB			0x09
22 #define  REG_OSC1			0x0A
23 #define  REG_AFCCTRL			0x0B
24 #define  REG_LOWBAT			0x0C
25 #define  REG_LISTEN1			0x0D
26 #define  REG_LISTEN2			0x0E
27 #define  REG_LISTEN3			0x0F
28 #define  REG_VERSION			0x10
29 #define  REG_PALEVEL			0x11
30 #define  REG_PARAMP			0x12
31 #define  REG_OCP			0x13
32 #define  REG_AGCREF			0x14 /* not available on RF69 */
33 #define  REG_AGCTHRESH1			0x15 /* not available on RF69 */
34 #define  REG_AGCTHRESH2			0x16 /* not available on RF69 */
35 #define  REG_AGCTHRESH3			0x17 /* not available on RF69 */
36 #define  REG_LNA			0x18
37 #define  REG_RXBW			0x19
38 #define  REG_AFCBW			0x1A
39 #define  REG_OOKPEAK			0x1B
40 #define  REG_OOKAVG			0x1C
41 #define  REG_OOKFIX			0x1D
42 #define  REG_AFCFEI			0x1E
43 #define  REG_AFCMSB			0x1F
44 #define  REG_AFCLSB			0x20
45 #define  REG_FEIMSB			0x21
46 #define  REG_FEILSB			0x22
47 #define  REG_RSSICONFIG			0x23
48 #define  REG_RSSIVALUE			0x24
49 #define  REG_DIOMAPPING1		0x25
50 #define  REG_DIOMAPPING2		0x26
51 #define  REG_IRQFLAGS1			0x27
52 #define  REG_IRQFLAGS2			0x28
53 #define  REG_RSSITHRESH			0x29
54 #define  REG_RXTIMEOUT1			0x2A
55 #define  REG_RXTIMEOUT2			0x2B
56 #define  REG_PREAMBLE_MSB		0x2C
57 #define  REG_PREAMBLE_LSB		0x2D
58 #define  REG_SYNC_CONFIG		0x2E
59 #define  REG_SYNCVALUE1			0x2F
60 #define  REG_SYNCVALUE2			0x30
61 #define  REG_SYNCVALUE3			0x31
62 #define  REG_SYNCVALUE4			0x32
63 #define  REG_SYNCVALUE5			0x33
64 #define  REG_SYNCVALUE6			0x34
65 #define  REG_SYNCVALUE7			0x35
66 #define  REG_SYNCVALUE8			0x36
67 #define  REG_PACKETCONFIG1		0x37
68 #define  REG_PAYLOAD_LENGTH		0x38
69 #define  REG_NODEADRS			0x39
70 #define  REG_BROADCASTADRS		0x3A
71 #define  REG_AUTOMODES			0x3B
72 #define  REG_FIFO_THRESH		0x3C
73 #define  REG_PACKETCONFIG2		0x3D
74 #define  REG_AESKEY1			0x3E
75 #define  REG_AESKEY2			0x3F
76 #define  REG_AESKEY3			0x40
77 #define  REG_AESKEY4			0x41
78 #define  REG_AESKEY5			0x42
79 #define  REG_AESKEY6			0x43
80 #define  REG_AESKEY7			0x44
81 #define  REG_AESKEY8			0x45
82 #define  REG_AESKEY9			0x46
83 #define  REG_AESKEY10			0x47
84 #define  REG_AESKEY11			0x48
85 #define  REG_AESKEY12			0x49
86 #define  REG_AESKEY13			0x4A
87 #define  REG_AESKEY14			0x4B
88 #define  REG_AESKEY15			0x4C
89 #define  REG_AESKEY16			0x4D
90 #define  REG_TEMP1			0x4E
91 #define  REG_TEMP2			0x4F
92 #define  REG_TESTLNA			0x58
93 #define  REG_TESTPA1			0x5A /* only present on RFM69HW */
94 #define  REG_TESTPA2			0x5C /* only present on RFM69HW */
95 #define  REG_TESTDAGC			0x6F
96 #define  REG_TESTAFC			0x71
97 
98 /******************************************************/
99 /* RF69/SX1231 bit definition				*/
100 /******************************************************/
101 /* write bit */
102 #define WRITE_BIT				0x80
103 
104 /* RegOpMode */
105 #define  MASK_OPMODE_SEQUENCER_OFF		0x80
106 #define  MASK_OPMODE_LISTEN_ON			0x40
107 #define  MASK_OPMODE_LISTEN_ABORT		0x20
108 #define  MASK_OPMODE_MODE			0x1C
109 
110 #define  OPMODE_MODE_SLEEP			0x00
111 #define  OPMODE_MODE_STANDBY			0x04 /* default */
112 #define  OPMODE_MODE_SYNTHESIZER		0x08
113 #define  OPMODE_MODE_TRANSMIT			0x0C
114 #define  OPMODE_MODE_RECEIVE			0x10
115 
116 /* RegDataModul */
117 #define  MASK_DATAMODUL_MODE			0x06
118 #define  MASK_DATAMODUL_MODULATION_TYPE		0x18
119 #define  MASK_DATAMODUL_MODULATION_SHAPE	0x03
120 
121 #define  DATAMODUL_MODE_PACKET			0x00 /* default */
122 #define  DATAMODUL_MODE_CONTINUOUS		0x40
123 #define  DATAMODUL_MODE_CONTINUOUS_NOSYNC	0x60
124 
125 #define  DATAMODUL_MODULATION_TYPE_FSK		0x00 /* default */
126 #define  DATAMODUL_MODULATION_TYPE_OOK		0x08
127 
128 #define  DATAMODUL_MODULATION_SHAPE_NONE	0x00 /* default */
129 #define  DATAMODUL_MODULATION_SHAPE_1_0		0x01
130 #define  DATAMODUL_MODULATION_SHAPE_0_5		0x02
131 #define  DATAMODUL_MODULATION_SHAPE_0_3		0x03
132 #define  DATAMODUL_MODULATION_SHAPE_BR		0x01
133 #define  DATAMODUL_MODULATION_SHAPE_2BR		0x02
134 
135 /* RegFDevMsb (0x05)*/
136 #define FDEVMASB_MASK				0x3f
137 
138 /*
139  * // RegOsc1
140  * #define  OSC1_RCCAL_START			0x80
141  * #define  OSC1_RCCAL_DONE			0x40
142  *
143  * // RegLowBat
144  * #define  LOWBAT_MONITOR				0x10
145  * #define  LOWBAT_ON				0x08
146  * #define  LOWBAT_OFF				0x00  // Default
147  *
148  * #define  LOWBAT_TRIM_1695			0x00
149  * #define  LOWBAT_TRIM_1764			0x01
150  * #define  LOWBAT_TRIM_1835			0x02  // Default
151  * #define  LOWBAT_TRIM_1905			0x03
152  * #define  LOWBAT_TRIM_1976			0x04
153  * #define  LOWBAT_TRIM_2045			0x05
154  * #define  LOWBAT_TRIM_2116			0x06
155  * #define  LOWBAT_TRIM_2185			0x07
156  *
157  *
158  * // RegListen1
159  * #define  LISTEN1_RESOL_64			0x50
160  * #define  LISTEN1_RESOL_4100			0xA0  // Default
161  * #define  LISTEN1_RESOL_262000			0xF0
162  *
163  * #define  LISTEN1_CRITERIA_RSSI			0x00  // Default
164  * #define  LISTEN1_CRITERIA_RSSIANDSYNC		0x08
165  *
166  * #define  LISTEN1_END_00				0x00
167  * #define  LISTEN1_END_01				0x02  // Default
168  * #define  LISTEN1_END_10				0x04
169  *
170  *
171  * // RegListen2
172  * #define  LISTEN2_COEFIDLE_VALUE			0xF5 // Default
173  *
174  * // RegListen3
175  * #define  LISTEN3_COEFRX_VALUE			0x20 // Default
176  */
177 
178 // RegPaLevel
179 #define  MASK_PALEVEL_PA0			0x80
180 #define  MASK_PALEVEL_PA1			0x40
181 #define  MASK_PALEVEL_PA2			0x20
182 #define  MASK_PALEVEL_OUTPUT_POWER		0x1F
183 
184 // RegPaRamp
185 #define  PARAMP_3400				0x00
186 #define  PARAMP_2000				0x01
187 #define  PARAMP_1000				0x02
188 #define  PARAMP_500				0x03
189 #define  PARAMP_250				0x04
190 #define  PARAMP_125				0x05
191 #define  PARAMP_100				0x06
192 #define  PARAMP_62				0x07
193 #define  PARAMP_50				0x08
194 #define  PARAMP_40				0x09 /* default */
195 #define  PARAMP_31				0x0A
196 #define  PARAMP_25				0x0B
197 #define  PARAMP_20				0x0C
198 #define  PARAMP_15				0x0D
199 #define  PARAMP_12				0x0E
200 #define  PARAMP_10				0x0F
201 
202 #define  MASK_PARAMP				0x0F
203 
204 /*
205  * // RegOcp
206  * #define  OCP_OFF				0x0F
207  * #define  OCP_ON					0x1A  // Default
208  *
209  * #define  OCP_TRIM_45				0x00
210  * #define  OCP_TRIM_50				0x01
211  * #define  OCP_TRIM_55				0x02
212  * #define  OCP_TRIM_60				0x03
213  * #define  OCP_TRIM_65				0x04
214  * #define  OCP_TRIM_70				0x05
215  * #define  OCP_TRIM_75				0x06
216  * #define  OCP_TRIM_80				0x07
217  * #define  OCP_TRIM_85				0x08
218  * #define  OCP_TRIM_90				0x09
219  * #define  OCP_TRIM_95				0x0A
220  * #define  OCP_TRIM_100				0x0B  // Default
221  * #define  OCP_TRIM_105				0x0C
222  * #define  OCP_TRIM_110				0x0D
223  * #define  OCP_TRIM_115				0x0E
224  * #define  OCP_TRIM_120				0x0F
225  */
226 
227 /* RegLna (0x18) */
228 #define  MASK_LNA_ZIN				0x80
229 #define  MASK_LNA_CURRENT_GAIN			0x38
230 #define  MASK_LNA_GAIN				0x07
231 
232 #define  LNA_GAIN_AUTO				0x00 /* default */
233 #define  LNA_GAIN_MAX				0x01
234 #define  LNA_GAIN_MAX_MINUS_6			0x02
235 #define  LNA_GAIN_MAX_MINUS_12			0x03
236 #define  LNA_GAIN_MAX_MINUS_24			0x04
237 #define  LNA_GAIN_MAX_MINUS_36			0x05
238 #define  LNA_GAIN_MAX_MINUS_48			0x06
239 
240 /* RegRxBw (0x19) and RegAfcBw (0x1A) */
241 #define  MASK_BW_DCC_FREQ			0xE0
242 #define  MASK_BW_MANTISSE			0x18
243 #define  MASK_BW_EXPONENT			0x07
244 
245 #define  BW_DCC_16_PERCENT			0x00
246 #define  BW_DCC_8_PERCENT			0x20
247 #define  BW_DCC_4_PERCENT			0x40 /* default */
248 #define  BW_DCC_2_PERCENT			0x60
249 #define  BW_DCC_1_PERCENT			0x80
250 #define  BW_DCC_0_5_PERCENT			0xA0
251 #define  BW_DCC_0_25_PERCENT			0xC0
252 #define  BW_DCC_0_125_PERCENT			0xE0
253 
254 #define  BW_MANT_16				0x00
255 #define  BW_MANT_20				0x08
256 #define  BW_MANT_24				0x10 /* default */
257 
258 /* RegOokPeak (0x1B) */
259 #define  MASK_OOKPEAK_THRESTYPE			0xc0
260 #define  MASK_OOKPEAK_THRESSTEP			0x38
261 #define  MASK_OOKPEAK_THRESDEC			0x07
262 
263 #define  OOKPEAK_THRESHTYPE_FIXED		0x00
264 #define  OOKPEAK_THRESHTYPE_PEAK		0x40 /* default */
265 #define  OOKPEAK_THRESHTYPE_AVERAGE		0x80
266 
267 #define  OOKPEAK_THRESHSTEP_0_5_DB		0x00 /* default */
268 #define  OOKPEAK_THRESHSTEP_1_0_DB		0x08
269 #define  OOKPEAK_THRESHSTEP_1_5_DB		0x10
270 #define  OOKPEAK_THRESHSTEP_2_0_DB		0x18
271 #define  OOKPEAK_THRESHSTEP_3_0_DB		0x20
272 #define  OOKPEAK_THRESHSTEP_4_0_DB		0x28
273 #define  OOKPEAK_THRESHSTEP_5_0_DB		0x30
274 #define  OOKPEAK_THRESHSTEP_6_0_DB		0x38
275 
276 #define  OOKPEAK_THRESHDEC_ONCE			0x00 /* default */
277 #define  OOKPEAK_THRESHDEC_EVERY_2ND		0x01
278 #define  OOKPEAK_THRESHDEC_EVERY_4TH		0x02
279 #define  OOKPEAK_THRESHDEC_EVERY_8TH		0x03
280 #define  OOKPEAK_THRESHDEC_TWICE		0x04
281 #define  OOKPEAK_THRESHDEC_4_TIMES		0x05
282 #define  OOKPEAK_THRESHDEC_8_TIMES		0x06
283 #define  OOKPEAK_THRESHDEC_16_TIMES		0x07
284 
285 /*
286  * // RegOokAvg
287  * #define  OOKAVG_AVERAGETHRESHFILT_00		0x00
288  * #define  OOKAVG_AVERAGETHRESHFILT_01		0x40
289  * #define  OOKAVG_AVERAGETHRESHFILT_10		0x80  // Default
290  * #define  OOKAVG_AVERAGETHRESHFILT_11		0xC0
291  *
292  *
293  * // RegAfcFei
294  * #define  AFCFEI_FEI_DONE			0x40
295  * #define  AFCFEI_FEI_START			0x20
296  * #define  AFCFEI_AFC_DONE			0x10
297  * #define  AFCFEI_AFCAUTOCLEAR_ON			0x08
298  * #define  AFCFEI_AFCAUTOCLEAR_OFF		0x00  // Default
299  *
300  * #define  AFCFEI_AFCAUTO_ON			0x04
301  * #define  AFCFEI_AFCAUTO_OFF			0x00  // Default
302  *
303  * #define  AFCFEI_AFC_CLEAR			0x02
304  * #define  AFCFEI_AFC_START			0x01
305  *
306  * // RegRssiConfig
307  * #define  RSSI_FASTRX_ON				0x08
308  * #define  RSSI_FASTRX_OFF			0x00  // Default
309  * #define  RSSI_DONE				0x02
310  * #define  RSSI_START				0x01
311  */
312 
313 /* RegDioMapping1 */
314 #define  MASK_DIO0				0xC0
315 #define  MASK_DIO1				0x30
316 #define  MASK_DIO2				0x0C
317 #define  MASK_DIO3				0x03
318 #define  SHIFT_DIO0				6
319 #define  SHIFT_DIO1				4
320 #define  SHIFT_DIO2				2
321 #define  SHIFT_DIO3				0
322 
323 /* RegDioMapping2 */
324 #define  MASK_DIO4				0xC0
325 #define  MASK_DIO5				0x30
326 #define  SHIFT_DIO4				6
327 #define  SHIFT_DIO5				4
328 
329 /* DIO numbers */
330 #define  DIO0					0
331 #define  DIO1					1
332 #define  DIO2					2
333 #define  DIO3					3
334 #define  DIO4					4
335 #define  DIO5					5
336 
337 /* DIO Mapping values (packet mode) */
338 #define  DIO_MODE_READY_DIO4			0x00
339 #define  DIO_MODE_READY_DIO5			0x03
340 #define  DIO_CLK_OUT				0x00
341 #define  DIO_DATA				0x01
342 #define  DIO_TIMEOUT_DIO1			0x03
343 #define  DIO_TIMEOUT_DIO4			0x00
344 #define  DIO_RSSI_DIO0				0x03
345 #define  DIO_RSSI_DIO3_4			0x01
346 #define  DIO_RX_READY				0x02
347 #define  DIO_PLL_LOCK				0x03
348 #define  DIO_TX_READY				0x01
349 #define  DIO_FIFO_FULL_DIO1			0x01
350 #define  DIO_FIFO_FULL_DIO3			0x00
351 #define  DIO_SYNC_ADDRESS			0x02
352 #define  DIO_FIFO_NOT_EMPTY_DIO1		0x02
353 #define  DIO_FIFO_NOT_EMPTY_FIO2		0x00
354 #define  DIO_AUTOMODE				0x04
355 #define  DIO_FIFO_LEVEL				0x00
356 #define  DIO_CRC_OK				0x00
357 #define  DIO_PAYLOAD_READY			0x01
358 #define  DIO_PACKET_SENT			0x00
359 #define  DIO_DCLK				0x00
360 
361 /* RegDioMapping2 CLK_OUT part */
362 #define  MASK_DIOMAPPING2_CLK_OUT		0x07
363 
364 #define  DIOMAPPING2_CLK_OUT_NO_DIV		0x00
365 #define  DIOMAPPING2_CLK_OUT_DIV_2		0x01
366 #define  DIOMAPPING2_CLK_OUT_DIV_4		0x02
367 #define  DIOMAPPING2_CLK_OUT_DIV_8		0x03
368 #define  DIOMAPPING2_CLK_OUT_DIV_16		0x04
369 #define  DIOMAPPING2_CLK_OUT_DIV_32		0x05
370 #define  DIOMAPPING2_CLK_OUT_RC			0x06
371 #define  DIOMAPPING2_CLK_OUT_OFF		0x07 /* default */
372 
373 /* RegIrqFlags1 */
374 #define  MASK_IRQFLAGS1_MODE_READY		0x80
375 #define  MASK_IRQFLAGS1_RX_READY		0x40
376 #define  MASK_IRQFLAGS1_TX_READY		0x20
377 #define  MASK_IRQFLAGS1_PLL_LOCK		0x10
378 #define  MASK_IRQFLAGS1_RSSI			0x08
379 #define  MASK_IRQFLAGS1_TIMEOUT			0x04
380 #define  MASK_IRQFLAGS1_AUTOMODE		0x02
381 #define  MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH	0x01
382 
383 /* RegIrqFlags2 */
384 #define  MASK_IRQFLAGS2_FIFO_FULL		0x80
385 #define  MASK_IRQFLAGS2_FIFO_NOT_EMPTY		0x40
386 #define  MASK_IRQFLAGS2_FIFO_LEVEL		0x20
387 #define  MASK_IRQFLAGS2_FIFO_OVERRUN		0x10
388 #define  MASK_IRQFLAGS2_PACKET_SENT		0x08
389 #define  MASK_IRQFLAGS2_PAYLOAD_READY		0x04
390 #define  MASK_IRQFLAGS2_CRC_OK			0x02
391 #define  MASK_IRQFLAGS2_LOW_BAT			0x01
392 
393 /* RegSyncConfig */
394 #define  MASK_SYNC_CONFIG_SYNC_ON		0x80 /* default */
395 #define  MASK_SYNC_CONFIG_FIFO_FILL_CONDITION	0x40
396 #define  MASK_SYNC_CONFIG_SYNC_SIZE		0x38
397 #define  MASK_SYNC_CONFIG_SYNC_TOLERANCE	0x07
398 
399 /* RegPacketConfig1 */
400 #define  MASK_PACKETCONFIG1_PACKET_FORMAT_VARIABLE	0x80
401 #define  MASK_PACKETCONFIG1_DCFREE			0x60
402 #define  MASK_PACKETCONFIG1_CRC_ON			0x10 /* default */
403 #define  MASK_PACKETCONFIG1_CRCAUTOCLEAR_OFF		0x08
404 #define  MASK_PACKETCONFIG1_ADDRESSFILTERING		0x06
405 
406 #define  PACKETCONFIG1_DCFREE_OFF			0x00 /* default */
407 #define  PACKETCONFIG1_DCFREE_MANCHESTER		0x20
408 #define  PACKETCONFIG1_DCFREE_WHITENING			0x40
409 #define  PACKETCONFIG1_ADDRESSFILTERING_OFF		0x00 /* default */
410 #define  PACKETCONFIG1_ADDRESSFILTERING_NODE		0x02
411 #define  PACKETCONFIG1_ADDRESSFILTERING_NODEBROADCAST	0x04
412 
413 /*
414  * // RegAutoModes
415  * #define  AUTOMODES_ENTER_OFF			0x00  // Default
416  * #define  AUTOMODES_ENTER_FIFONOTEMPTY		0x20
417  * #define  AUTOMODES_ENTER_FIFOLEVEL		0x40
418  * #define  AUTOMODES_ENTER_CRCOK			0x60
419  * #define  AUTOMODES_ENTER_PAYLOADREADY		0x80
420  * #define  AUTOMODES_ENTER_SYNCADRSMATCH		0xA0
421  * #define  AUTOMODES_ENTER_PACKETSENT		0xC0
422  * #define  AUTOMODES_ENTER_FIFOEMPTY		0xE0
423  *
424  * #define  AUTOMODES_EXIT_OFF			0x00  // Default
425  * #define  AUTOMODES_EXIT_FIFOEMPTY		0x04
426  * #define  AUTOMODES_EXIT_FIFOLEVEL		0x08
427  * #define  AUTOMODES_EXIT_CRCOK			0x0C
428  * #define  AUTOMODES_EXIT_PAYLOADREADY		0x10
429  * #define  AUTOMODES_EXIT_SYNCADRSMATCH		0x14
430  * #define  AUTOMODES_EXIT_PACKETSENT		0x18
431  * #define  AUTOMODES_EXIT_RXTIMEOUT		0x1C
432  *
433  * #define  AUTOMODES_INTERMEDIATE_SLEEP		0x00  // Default
434  * #define  AUTOMODES_INTERMEDIATE_STANDBY		0x01
435  * #define  AUTOMODES_INTERMEDIATE_RECEIVER	0x02
436  * #define  AUTOMODES_INTERMEDIATE_TRANSMITTER	0x03
437  *
438  */
439 /* RegFifoThresh (0x3c) */
440 #define  MASK_FIFO_THRESH_TXSTART		0x80
441 #define  MASK_FIFO_THRESH_VALUE			0x7F
442 
443 /*
444  *
445  * // RegPacketConfig2
446  * #define  PACKET2_RXRESTARTDELAY_1BIT		0x00  // Default
447  * #define  PACKET2_RXRESTARTDELAY_2BITS		0x10
448  * #define  PACKET2_RXRESTARTDELAY_4BITS		0x20
449  * #define  PACKET2_RXRESTARTDELAY_8BITS		0x30
450  * #define  PACKET2_RXRESTARTDELAY_16BITS		0x40
451  * #define  PACKET2_RXRESTARTDELAY_32BITS		0x50
452  * #define  PACKET2_RXRESTARTDELAY_64BITS		0x60
453  * #define  PACKET2_RXRESTARTDELAY_128BITS		0x70
454  * #define  PACKET2_RXRESTARTDELAY_256BITS		0x80
455  * #define  PACKET2_RXRESTARTDELAY_512BITS		0x90
456  * #define  PACKET2_RXRESTARTDELAY_1024BITS	0xA0
457  * #define  PACKET2_RXRESTARTDELAY_2048BITS	0xB0
458  * #define  PACKET2_RXRESTARTDELAY_NONE		0xC0
459  * #define  PACKET2_RXRESTART			0x04
460  *
461  * #define  PACKET2_AUTORXRESTART_ON		0x02  // Default
462  * #define  PACKET2_AUTORXRESTART_OFF		0x00
463  *
464  * #define  PACKET2_AES_ON				0x01
465  * #define  PACKET2_AES_OFF			0x00  // Default
466  *
467  *
468  * // RegTemp1
469  * #define  TEMP1_MEAS_START			0x08
470  * #define  TEMP1_MEAS_RUNNING			0x04
471  * #define  TEMP1_ADCLOWPOWER_ON			0x01  // Default
472  * #define  TEMP1_ADCLOWPOWER_OFF			0x00
473  */
474 
475 // RegTestDagc (0x6F)
476 #define  DAGC_NORMAL				0x00 /* Reset value */
477 #define  DAGC_IMPROVED_LOWBETA1			0x20
478 #define  DAGC_IMPROVED_LOWBETA0			0x30 /* Recommended val */
479