Datasheet

ADS1291
ADS1292
ADS1292R
www.ti.com SBAS502B –DECEMBER 2011–REVISED SEPTEMBER 2012
LOFF_STAT: Lead-Off Status
Address = 08h
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
RLD_STAT IN2N_OFF IN2P_OFF IN1N_OFF IN1P_OFF
0 CLK_DIV 0
(read only) (read only) (read only) (read only) (read only)
This register stores the status of whether the positive or negative electrode on each channel is on or off. See the
Lead-Off Detection subsection of the ECG-Specific Functions section for details. Ignore the LOFF_STAT values
if the corresponding LOFF_SENS bits are not set to '1'.
'0' is lead-on (default) and '1' is lead-off. When the LOFF_SENS bits[3:0] are '0', the LOFF_STAT bits should be
ignored.
Bit 7 Must be set to '0'
Bit 6 CLK_DIV : Clock divider selection
This bit sets the modultar divider ratio between f
CLK
and f
MOD
. Two external clock values are supported: 512 kHz and
2.048 MHz.
0 = f
MOD
= f
CLK
/ 4 (default, use when f
CLK
= 512 kHz)
1 = f
MOD
= f
CLK
/ 16 (use when f
CLK
= 2.048 MHz)
Bit 5 Must be set to '0'
Bit 4 RLD_STAT: RLD lead-off status
This bit determines the status of RLD.
0 = RLD is connected (default)
1 = RLD is not connected
Bit 3 IN2N_OFF: Channel 2 negative electrode status
This bit determines if the channel 2 negative electrode is connected or not.
0 = Connected (default)
1 = Not connected
Bit 2 IN2P_OFF: Channel 2 positive electrode status
This bit determines if the channel 2 positive electrode is connected or not.
0 = Connected (default)
1 = Not connected
Bit 1 IN1N_OFF: Channel 1 negative electrode status
This bit determines if the channel 1 negative electrode is connected or not.
0 = Connected (default)
1 = Not connected
Bit 0 IN1P_OFF: Channel 1 positive electrode status
This bit determines if the channel 1 positive electrode is connected or not.
0 = Connected (default)
1 = Not connected
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