UG-707
ADV8005 Hardware Reference Manual
fil_resp_aa[3:0]
, Encoder Map,
Address 0xE458[3:0]
This signal is used to set the adaptive filter gain 1 for the ED/HD standard. This is value A.
Function
fil_resp_aa[3:0]
Description
0000 (default)
Gain A 0
0001
Gain A +1
...
0111
Gain A +7
1000
Gain A -8
...
1110
Gain A -2
1111
Gain A -1
fil_resp_bb[3:0]
, Encoder Map,
Address 0xE459[7:4]
This signal is used to set the adaptive filter gain 2 for the ED/HD standard. This is value B.
Function
fil_resp_bb[3:0]
Description
0000 (default)
Gain B 0
0001
Gain B +1
...
0111
Gain B +7
1000
Gain B -8
...
1110
Gain B -2
1111
Gain B -1
fil_resp_cb[3:0]
, Encoder Map,
Address 0xE45A[7:4]
This signal is used to set the adaptive filter gain 3 for the ED/HD standard. This is value B.
Function
fil_resp_cb[3:0]
Description
0000 (default)
Gain B 0
0001
Gain B +1
...
0111
Gain B +7
1000
Gain B -8
...
1110
Gain B -2
1111
Gain B -1
fil_resp_ca[3:0]
, Encoder Map,
Address 0xE45A[3:0]
This signal is used to set the adaptive filter gain 3 for the ED/HD standard. This is value A.
Function
fil_resp_ca[3:0]
Description
0000 (default)
Gain A 0
0001
Gain A +1
...
0111
Gain A +7
1000
Gain A -8
...
1110
Gain A -2
1111
Gain A -1
7.4.18.3.
ED/HD Adaptive Filter Modes
Two adaptive filter modes are available: mode A and mode B.
Mode A is used when the ED/HD adaptive filter mode control is set to 0. In this case, filter B (LPF) is used in the adaptive filter block. In
addition, only the programmed values for Gain B in the ED/HD sharpness filter gain register and ED/HD adaptive filter (Gain 1, Gain 2, and
Gain 3) registers are applied when needed. The Gain A values are fixed and cannot be changed.
Rev. A | Page 268 of 317
