LF3330
DEVICES INCORPORATED
Vertical Digital Image Filter
LF Interface
TM
The LF Interface
TM
is used to load
data into the coefficient banks and
configuration/control registers. LD
is used to enable and disable the
LF Interface
TM
. When LD goes LOW,
the LF Interface
TM
is enabled for data
input. The first value fed into the
interface on CF
11-0
is an address
which determines what the interface
is going to load. The three most
limit is stored in bits 31-16. RSL
3-0
determines which limit register is
used for limiting when limiting is
enabled. Configuration and control
register loading is discussed in the
LF Interface
TM
section.
F
IGURE
10. R
OUND
R
EGISTER
L
OADING
S
EQUENCE WITH
PAUSE I
MPLEMENTATION
ROUND REGISTER
CLK
W1
PAUSE
LD
CF
11-0
ADDR
1
DATA
1
DATA
2
DATA
3
DATA
4
W1: Round Register loaded with new data on this rising clock edge.
F
IGURE
11. L
IMIT
R
EGISTER
L
OADING
S
EQUENCE WITH
PAUSE I
MPLEMENTATION
LIMIT REGISTER
CLK
W1
PAUSE
LD
CF
11-0
ADDR
1
DATA
1
DATA
2
DATA
3
DATA
4
W1: Limit Register loaded with new data on this rising clock edge.
T
ABLE
10.
C
OEFFICIENT
B
ANK
L
OADING
F
ORMAT
CF
11
CF
10
0
0
1
1
0
1
0
1
0
CF
9
0
1
0
0
0
1
0
1
0
CF
8
0
0
1
0
1
1
0
1
1
CF
7
0
0
0
0
1
0
0
0
0
CF
6
0
0
1
1
1
0
0
0
1
CF
5
0
0
0
1
1
0
1
1
0
CF
4
0
1
0
1
0
0
1
0
0
CF
3
1
0
0
0
0
0
0
0
0
CF
2
0
0
0
1
0
0
0
0
0
CF
1
1
0
1
1
1
0
1
0
1
CF
0
0
0
1
0
1
1
0
0
1
0
0
0
1
1
0
1
1
0
1st Word - Address
2nd Word - Bank 0
3rd Word - Bank 1
4th Word - Bank 2
5th Word - Bank 3
6th Word - Bank 4
7th Word - Bank 5
8th Word - Bank 6
9th Word - Bank 7
Video Imaging Products
8
11/08/2001–LDS.3330-M
LOGIC [ LOGIC DEVICES INCORPORATED ]
