ADS1291
ADS1292
ADS1292R
SBAS502A –DECEMBER 2011–REVISED MARCH 2012
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REGISTER MAP
Table 14 describes the various ADS1291, ADS1292, and ADS1292R registers.
Table 14. Register Assignments
RESET
VALUE
ADDRESS
Device Settings (Read-Only Registers)
00h ID
Global Settings Across Channels
REGISTER
(Hex)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
XX
02
REV_ID7
REV_ID6
REV_ID5
1
0
0
REV_ID1
REV_ID0
SINGLE_
SHOT
01h
CONFIG1
0
0
0
0
DR2
DR1
DR0
PDB_LOFF_
COMP
02h
03h
CONFIG2
LOFF
80
10
1
PDB_REFBUF
COMP_TH0
VREF_4V
1
CLK_EN
0
INT_TEST
0
TEST_FREQ
FLEAD_OFF
COMP_TH2
COMP_TH1
ILEAD_OFF1
ILEAD_OFF0
Channel-Specific Settings
04h
05h
CH1SET
CH2SET
00
00
PD1
PD2
GAIN1_2
GAIN2_2
GAIN1_1
GAIN2_1
GAIN1_0
GAIN2_0
MUX1_3
MUX2_3
MUX1_2
MUX2_2
MUX1_1
MUX2_1
MUX1_0
MUX2_0
RLD_LOFF_
SENS
06h
RLD_SENS
00
CHOP1
CHOP0
PDB_RLD
RLD2N
RLD2P
RLD1N
RLD1P
07h
08h
LOFF_SENS
LOFF_STAT
00
00
0
0
0
FLIP2
0
FLIP1
LOFF2N
LOFF2P
LOFF1N
LOFF1P
CLK_DIV
RLD_STAT
IN2N_OFF
IN2P_OFF
IN1N_OFF
IN1P_OFF
GPIO and Other Registers
RESP_
DEMOD_EN1
RESP_MOD_
EN
09h
RESP1
00
RESP_PH3
RESP_PH2
RESP_PH1
RESP_PH0
1
RESP_CTRL
0Ah
0Bh
RESP2
GPIO
02
CALIB_ON
0
0
0
0
0
0
0
0
RESP_FREQ
GPIOC1
RLDREF_INT
GPIOD2
1
0C
GPIOC2
GPIOD1
User Register Description
ID: ID Control Register (Factory-Programmed, Read-Only)
Address = 00h
BIT 7
BIT 6
BIT 5
BIT 4
1
BIT 3
0
BIT 2
0
BIT 1
REV_ID1
BIT 0
REV_ID7
REV_ID6
REV_ID5
REV_ID0
This register is programmed during device manufacture to indicate device characteristics.
Bits[7:5]
REV_ID[7:5]: Revision identification
000 = Reserved
001 = Reserved
010 = ADS1x9x device
011 = ADS1292R device
100 = Reserved
101 = Reserved
110 = Reserved
111 = Reserved
Bit 4
Reads high
Bits[3:2]
Bits[1:0]
Reads low
REV_ID[1:0]: Revision identification
00 = ADS1191
01 = ADS1192
10 = ADS1291
11 = ADS1292 and ADS1292R
38
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