LM9833CCVJD/NOPB National Semiconductor, LM9833CCVJD/NOPB Datasheet - Page 18

• Manufacturer Part Number: LM9833CCVJD/NOPB
• Description: IC USB IMAGE SCAN 48BIT 100-TOFP
• Manufacturer: National Semiconductor

Specifications of LM9833CCVJD/NOPB

• Number Of Bits: 16
• Number Of Channels: 3
• Voltage - Supply, Analog: 5V
• Voltage - Supply, Digital: 4.5 V ~ 5.5 V
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: *LM9833CCVJD; *LM9833CCVJD/NOPB; LM9833CCVJD

Register Listing
Address
PAPER SENSE SETTINGS
55
56
57
58
Kickstart steps (fullstepping mode)
Hold Current Timeout
Stepper Motor PWM Frequency
Stepper Motor PWM Set Duty Cycle
PAPER SENSE 1: Polarity
PAPER SENSE 1: Level/Edge sensitive
PAPER SENSE 1: Stop Scan, High Speed
Forward, and High Speed Reverse
Use this input for the home sensor in flatbed
scanners.
PAPER SENSE 2: Polarity
PAPER SENSE 2: Level/Edge sensitive
PAPER SENSE 2: Stop Scan and High
Speed Forward
(Continued)
Function
D
7
n n n n n
n n n n n n n n
D
6
D
5
n n n n n n = minimum of n/64 (default = 0)
0
1
D
4
0
1
18
D
0
1
3
D
2
n n n Motor gets maximum current for first n (0-7) full steps
0
1
D
1
0
1
D
0
0 A low input on PAPER SENSE 1 is True
1 A high input on PAPER SENSE 1 is True
Full step time units (1-31) (do not set to 0)
=CRYSTAL OUT/(256*n) (0 < n < 256)
=CRYSTAL OUT/(256*256) (n = 0)
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
command register.
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.
The scan will automatically stop after scanning for the
number of fullsteps specified in the Step Counter
(registers 4C and 4D). (The fullsteps moved during
the “FastFeed At Start of scan period are not
counted.) If the value in the Step Counter is 0, the
scan can only be stopped by writing a 0 to register 07.
A False-to-True transition on PAPER SENSE 2 will
stop a scan or a High Speed Forward command after
the number of fullsteps specified in the Step Counter
(registers 4C and 4D). It will not stop a High Speed
Reverse, and therefore should not be used as a home
position sensor input.
Value
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