Analog Devices ADV7850 Hardware Manual page 143

Function
man_edid_c_enable
0 
1
man_edid_d_enable, Addr 64 (Repeater), Address 0x74[3]
This control is used to manually enable I2C access to the internal EDID ram from DDC Port D, when the load_edid and cksum_calc
operations are finished.
Function
man_edid_d_enable
0 
1
When the internal E-EDID is enabled on any of the four ports (for example, Port A by setting
must first calculate the E-EDID checksums for that port before the E-EDID is actually enabled.
The following read only flags can be utilized to determine if the E-EDID is actually enabled on any of the four HDMI ports.
edid_a_enabled, Addr 64 (Repeater), Address 0x76[0] (Read Only)
This readback displays the resulting I2C enable readback for EDID access on Port A, after a combination of manual and automatic
functions.
Function
edid_a_enabled
0 
1
edid_b_enabled, Addr 64 (Repeater), Address 0x76[1] (Read Only)
This readback displays the resulting I2C enable readback for EDID access on Port B, after a combination of manual and automatic
functions.
Function
edid_b_enabled
0 
1
edid_c_enabled, Addr 64 (Repeater), Address 0x76[2] (Read Only)
This readback displays the resulting I2C enable readback for EDID access on Port C, after a combination of manual and automatic
functions.
Function
edid_c_enabled
0 
1
edid_d_enabled, Addr 64 (Repeater), Address 0x76[3] (Read Only)
This readback displays the resulting I2C enable readback for EDID access on port D, after a combination of manual and automatic
functions.
Rev. A May 2012
Description
Manual enable not active for E-EDID on Port C
Manual enable active for E-EDID on Port C
Description
Manual enable not active for E-EDID on Port D
Manual enable active for E-EDID on Port D
Description
Disabled
Enabled
Description
Disabled
Enabled
Description
Disabled
Enabled
man_edid_a_enable
143
ADV7850
to 1), the ADV7850