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SBAS499A –JULY 2012–REVISED AUGUST 2012
LOFF_SENSP: Lead Off Positive Sense Selection
Address = 0Fh
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LOFFP8
LOFFP7
LOFFP6
LOFFP5
LOFFP4
LOFFP3
LOFFP2
LOFFP1
This register selects the positive side from each channel for lead-off detection. See the Lead-Off Detection
subsection of the EEG-Specific Functions section for details. Note that the LOFF_STATP register bits are only
valid if the corresponding LOFF_SENSP bits are set to '1'.
LOFF_SENSN: Lead Off Negative Sense Selection
Address = 10h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LOFFM8
LOFFM7
LOFFM6
LOFFM5
LOFFM4
LOFFM3
LOFFM2
LOFFM1
This register selects the negative side from each channel for lead-off detection. See the Lead-Off Detection
subsection of the EEG-Specific Functions section for details. Note that the LOFF_STATN register bits are only
valid if the corresponding LOFF_SENSN bits are set to '1'.
LOFF_FLIP: Lead Off Current Direction Control
Address = 11h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LOFF_FLIP8
LOFF_FLIP7
LOFF_FLIP6
LOFF_FLIP5
LOFF_FLIP4
LOFF_FLIP3
LOFF_FLIP2
LOFF_FLIP1
This register controls the current direction used for lead-off derivation. See the Lead-Off Detection subsection of
the EEG-Specific Functions section for details.
LOFF_STATP: Lead-Off Positive Input Status
Address = 12h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IN8P_OFF
IN7P_OFF
IN6P_OFF
IN5P_OFF
IN4P_OFF
IN3P_OFF
IN2P_OFF
IN1P_OFF
This register stores the status of whether the positive electrode on each channel is on or off. See the Lead-Off
Detection subsection of the EEG-Specific Functions section for details. Ignore the LOFF_STATP values if the
corresponding LOFF_SENSP bits are not set to '1'.
'0' is lead-on (default) and '1' is lead-off. When the LOFF_SENSP bits are '0', the LOFF_STATP bits should be
ignored.
LOFF_STATN: Lead-Off Negative Input Status
Address = 13h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IN8M_OFF
IN7M_OFF
IN6M_OFF
IN5M_OFF
IN4M_OFF
IN3M_OFF
IN2M_OFF
IN1M_OFF
This register stores the status of whether the negative electrode on each channel is on or off. See the Lead-Off
Detection subsection of the EEG-Specific Functions section for details. Ignore the LOFF_STATN values if the
corresponding LOFF_SENSN bits are not set to '1'.
'0' is lead-on (default) and '1' is lead-off. When the LOFF_SENSN bits are '0', the LOFF_STATP bits should be
ignored.
Copyright © 2012, Texas Instruments Incorporated
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