lf3310 LOGIC Devices Incorporated, lf3310 Datasheet - Page 3

• Manufacturer Part Number: lf3310
• Description: Horizontal / Vertical Digital Image Filter
• Manufacturer: LOGIC Devices Incorporated

DEVICES INCORPORATED
SIGNAL DEFINITIONS
Power
V
+3.3 V power supply. All pins must
be connected.
Clock
CLK — Master Clock
The rising edge of CLK strobes all
enabled registers.
Inputs
DIN
DIN
input port. Data is latched on the
rising edge of CLK.
HCF
HCF
the horizontal coefficient banks and
the Configuration/Control Registers.
Data present on HCF
into the Horizontal LF Interface
the rising edge of CLK when HLD is
LOW (see the LF Interface
for a full discussion).
HCA
HCA
in the horizontal coefficient banks is
fed to the multipliers in the horizontal
filter. HCA
zontal Coefficient Address Register on
the rising edge of CLK when HCEN
is LOW.
VCF
VCF
the vertical coefficient banks and
the Configuration/Control Registers.
Data present on VCF
into the Vertical LF Interface
rising edge of CLK when VLD is LOW
(see the LF Interface
full discussion).
CC
11-0
11-0
11-0
11-0
11-0
and GND
11-0
7-0
7-0
— Horizontal Coefficient
— Data Input
determines which row of data
is the 12-bit registered data
— Vertical Coefficient Input
is used to load data into
— Horizontal Coefficient Input
is used to load data into
Address
7-0
is latched into the Hori-
TM
11-0
11-0
section for a
is latched
is latched
TM
TM
section
on the
TM
on
VCA
VCA
in the vertical coefficient banks is fed
to the multipliers in the vertical filter.
VCA
Coefficient Address Register on the
rising edge of CLK when VCEN is
LOW.
Outputs
DOUT
DOUT
output port.
SLCT
F
F
T
00000
00001
00010
10010
10011
10100
IGURE
IGURE
ABLE
Horizontal Accumulator Output
·
·
·
7-0
7-0
7-0
(Sign)
(Sign)
4-0
11-0
11-0
2
11 10 9
31 30 29
2
— Vertical Coefficient Address
determines which row of data
is latched into the Vertical
11
20
1. O
2. I
3. H
— Data Output
is the 12-bit registered data
2
2
10
S
19
F
F
F
F
F
F
·
·
·
11
11
12
13
29
30
31
Input Data
2
2
NPUT
UTPUT
9
ORIZONTAL AND
18
S
F
F
F
F
F
F
·
·
·
3
10
10
11
12
28
29
30
Horizontal / Vertical Digital Image Filter
F
F
F
F
F
F
ORMATS
F
S
F
2
2
2
·
·
·
10
11
27
28
29
2
2
9
9
ORMATS
9
2
2
1
1
1
10
2
2
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
0
0
0
11
V
ERTICAL
Controls
HLD — Horizontal Coefficient Load
When HLD is LOW, data on HCF
is latched into the Horizontal LF Inter-
face
When HLD is HIGH, data can not be
latched into the Horizontal LF Inter-
face
face
LOW transition of HLD is required in
order for the input circuitry to func-
tion properly. Therefore, HLD must
be set HIGH immediately after power
up to ensure proper operation of the
input circuitry (see the LF Interface
section for a full discussion).
F
F
F
S
F
F
F
·
·
·
24
25
26
6
6
7
8
Video Imaging Products
A
Vertical Accumulator Output
TM
TM
TM
(Sign)
CCUMULATOR
(Sign)
11 10 9
F
F
F
2
S
F
F
F
2
31 30 29
. When enabling the LF Inter-
·
·
·
on the rising edge of CLK.
for data input, a HIGH to
0
23
24
25
20
5
6
7
5
2
2
Coefficient Data
1
19
2
2
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
2
18
F
ORMATS
2
2
2
2
F
F
F
9
S
F
F
F
9
·
·
·
20
21
22
9/14/2005-LDS.3310-I
2
3
4
2
2
2
1
10
1
10
LF3310
F
F
F
S
F
F
F
·
·
·
2
19
20
21
2
1
2
3
1
0
11
0
11
F
F
F
S
F
F
F
11-0
·
·
·
18
19
20
0
0
1
2
TM