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LF3338QC12 View Datasheet(PDF) - LOGIC Devices

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LF3338QC12
Logic-Devices
LOGIC Devices Logic-Devices
LF3338QC12 Datasheet PDF : 15 Pages
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DEVICES INCORPORATED
LF3338
8-Bit Vertical Digital Image Filter
limit is stored in bits 31-16. RSL3-0
determines which limit register is
used for limiting when limiting is
enabled. Configuration and control
register loading is discussed in the
LF InterfaceTM section.
LF InterfaceTM
The LF InterfaceTM is used to load
data into the coefficient banks and
configuration/control registers. LD
is used to enable and disable the
LF InterfaceTM. When LD goes LOW,
the LF InterfaceTM is enabled for data
input. The first value fed into the
interface on CF11-0 is an address
which determines what the interface
is going to load. The three most
FIGURE 10. ROUND REGISTER LOADING SEQUENCE WITH PAUSE IMPLEMENTATION
ROUND REGISTER
CLK
PAUSE
LD
CF11-0
ADDR1
DATA1
DATA2
W1: Round Register loaded with new data on this rising clock edge.
DATA3
W1
DATA4
FIGURE 11. LIMIT REGISTER LOADING SEQUENCE WITH PAUSE IMPLEMENTATION
LIMIT REGISTER
CLK
PAUSE
LD
CF11-0
ADDR1
DATA1
DATA2
W1: Limit Register loaded with new data on this rising clock edge.
DATA3
W1
DATA4
TABLE 10. COEFFICIENT BANK LOADING FORMAT
CF11 CF10 CF9 CF8 CF7 CF6 CF5 CF4 CF3 CF2 CF1 CF0
1st Word - Address 0
0
0
0
0
0
0
0
1
0
1
0
2nd Word - Bank 0
0
0
1
0
0
0
0
1
0
0
0
0
3rd Word - Bank 1
0
1
0
1
0
1
0
0
0
0
1
1
4th Word - Bank 2
1
1
0
0
0
1
1
1
0
1
1
0
5th Word - Bank 3
1
0
0
1
1
1
1
0
0
0
1
1
6th Word - Bank 4
0
1
1
1
0
0
0
0
0
0
0
1
7th Word - Bank 5
1
0
0
0
0
0
1
1
0
0
1
0
8th Word - Bank 6
1
1
1
1
0
0
1
0
0
0
0
0
9th Word - Bank 7
0
0
0
1
0
1
0
0
0
0
1
1
Video Imaging Products
8
04/06/1999–LDS.3338-B
 

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