Currently, a customer is using our ADV7441A at 4:4:4 output mode.
They would like to use LLC=13.5MHz on ADV7441A when input DVI 1440x480i.
( I know there are no AVI Info at DVI signal. )
As we know, when input DVI 1440x480i to our Rx, our RX can output the LLC=27MHz.
But the customer would like to use the LLC =27MHz/2=13.5MHz due to their system limitation.
We recommended the following.
DEPER_N_OVERRIDE (HDMI Map, Reg 0x41, bit 4 )= 1
DEREP_N[3:0], (HDMI Map Reg 0x41 bit[3:0])=1
The customer confirmed that the LLC frequency became 13.5MHz at that time.
But at that time, HDMI map address 0x07,0x08 LINE_WIDTH[11:0] changed from 1440 to 720.
The customer would like to use the LLC=13.5MHz without changing LINE_WIDTH[11:0] value.
Do you know how to the register setting of divided LLC?