Additional Sdp Status Registers - Analog Devices ADV7850 Hardware Manual

• sdp_noisy_hsw2_dis_3d
•
sdp_noisy_hsw1_dis_3d
• sdp_noisy_lc_dis_3d
•
sdp_noisy_blk_dis_3d
• sdp_noisy_fld_dis_3d
•
sdp_noisy_frm_dis_3d
• sdp_noisy_dis_3d
•
sdp_vnoisy_hsw2_dis_3d
• sdp_vnoisy_hsw1_dis_3d
• sdp_vnoisy_lc_dis_3d
• sdp_vnoisy_blk_dis_3d
• sdp_vnoisy_fld_dis_3d
• sdp_vnoisy_frm_dis_3d
• sdp_vnoisy_dis_3d
sdp_noisy_ip, Addr 90 (SDP), Address 0x54[7] (Read Only)
This readback displays the detection of a noisy input signal.
Function
sdp_noisy_ip
1
0 
sdp_very_noisy_ip, Addr 90 (SDP), Address 0x54[6] (Read Only)
This readback displays the detection of a very noisy input signal.
Function
sdp_very_noisy_ip
1
0 
sdp_noisy_thr[7:0], Addr 90 (SDP), Address 0xA1[7:0]
This control is used to set the threshold for input to be detected as noisy. A higher value reduces the possibility of detecting an input as
noisy.
sdp_very_noisy_thr[7:0], Addr 90 (SDP), Address 0xA2[7:0]
This control is used to set the threshold for input to be detected as very noisy. A higher valued reduces the possibility of detecting the
input to be very noisy.

Additional SDP Status Registers

6.4.6
An indication of signal strength can be obtained by reading back the burst power of the signal. The ADV7850 allows for two burst power
measurements
burst_power_act[11:0], Addr 94 (SDP_IO), Address 0x44[3:0]; Address 0x45[7:0] (Read Only)
This readback displays the active path burst power measurement.
Rev. A May 2012
Description
Noisy input detected
Noisy input not detected
Description
Very noisy input detected
Very noisy input not detected
79
ADV7850