![](http://datasheet.mmic.net.cn/230000/LM9831CCVJD_datasheet_15593402/LM9831CCVJD_18.png)
18
www.national.com
PAPER SENSE SETTINGS
58
PAPER SENSE 1: Polarity
0 A low input on PAPER SENSE 1 is True
1 A high input on PAPER SENSE 1 is True
Level sensitive: PAPER SENSE 1 State bit (in Status
Register) is set to a 1 if PAPER SENSE 1 is currently
True.
Edge sensitive: PAPER SENSE 1 State bit (in Status
Register) is set to a 1 if PAPER SENSE 1 has been
True since the last time the Status Register was read.
Transitions on PAPER SENSE 1 will not clear the
scanning bit.
A False - to - True transition on PAPER SENSE 1 will
clear the Command Register and stop the scan.
A low input on PAPER SENSE 2 is True
A high input on PAPER SENSE 2 is True
Level sensitive: PAPER SENSE 2 State bit (in Status
Register) is set to a 1 if PAPER SENSE 2 is currently
True.
Edge sensitive: PAPER SENSE 2 State bit (in Status
Register) is set to a 1 if PAPER SENSE 2 has been
True since the last time the Status Register was read.
Transitions on PAPER SENSE 2 will not clear the
scanning bit.
A False - to - True transition on PAPER SENSE 2 will
clear the Command Register and stop the scan (after
the number of lines specified in the
Lines to Scan
after PAPER SENSE 2 trips
register).
PAPER SENSE 1: Level/Edge sensitive
0
1
PAPER SENSE 1: Stop Scan
0
1
PAPER SENSE 2: Polarity
0
1
PAPER SENSE 2: Level/Edge sensitive
0
1
PAPER SENSE 2: Stop Scan
0
1
MISC I/O PIN SETTINGS
59
MISC I/O 1: Input or Output
0 The MISC I/O 1 pin is configured as an input.
1 The MISC I/O 1 pin is configured as an output.
A low input on MISC I/O 1 is True
A high input on MISC I/O 1 is True
Level sensitive: MISC I/O 1 State bit (in Status
Register) is set to a 1 if MISC I/O 1 is currently True.
Edge sensitive: MISC I/O 1 State bit (in Status
Register) is set to a 1 if MISC I/O 1 has been True
since the last time the Status Register was read.
The output of the MISC I/O 1 pin will be a logic low
(0V).
The output of the MISC I/O 1 pin will be a logic high
(5V).
The MISC I/O 2 pin is configured as an input.
The MISC I/O 2 pin is configured as an output.
A low input on MISC I/O 2 is True
A high input on MISC I/O 2 is True
Level sensitive: MISC I/O 2 State bit (in Status
Register) is set to a 1 if MISC I/O 2 is currently True.
Edge sensitive: MISC I/O 2 State bit (in Status
Register) is set to a 1 if MISC I/O 2 has been True
since the last time the Status Register was read.
The output of the MISC I/O 2 pin will be a logic low
(0V).
The output of the MISC I/O 2 pin will be a logic high
(5V).
MISC I/O 1: Polarity
(if configured as an input)
0
1
MISC I/O 1: Level/Edge sensitive
(if configured as an input)
0
1
MISC I/O 1: Output State
(if configured as an output)
Power On/USB Suspend Default: Input
0
1
MISC I/O 2: Input or Output
0
1
MISC I/O 2: Polarity
(if configured as an input)
0
1
MISC I/O 2: Level/Edge sensitive
(if configured as an input)
0
1
MISC I/O 2: Output State
(if configured as an output)
Power On/USB Suspend Default: Input
0
1
Address
Function
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Value