adv748x ttl input

Hi,

Please refer Page 222 in ADV748x_HardwareManual_RevPrB_2014-07-11.pdf for more details on TTL input/output.

• The ADV748x features an 8-bit bidirectional TTL input/output port which does not support any external sync signals. 
• Since there is a single 8-bit TTL port on the ADV748x, it is not possible to simultaneously use the port in input and output modes. 
• When configured as an output, the TTL port supports output from either the SDP or the combination of the HDMI/MHL and CP blocks. 
• When configured as an input, the TTL port allows data to be routed to the 4-lane MIPI CSI-2 Tx.

Also note that on ADV7480, ADV7481 and ADV7482, it is not possible to simultaneously output data on the TTL output interface while outputting data on any of the MIPI CSI-2 transmitters.

But ADV7481 and ADV7482 can output data on CSI-TXA and CSI-TXB simultaneously.

Please check the scripts that are available for TTL at ADV7480 Required Settings

##06 TTL Input Scripts - 8-Bit_SDR - MIPI Output##

:06-01 8-Bit SDR TTL to MIPI TX-A CSI 1-Lane - 480i,576i,480p,576p - YUV422 8-Bit:

Kindly share us the response you’re getting by considering the above information.

Thanks,
Dharani S

Hi,

Please refer Page 222 in ADV748x_HardwareManual_RevPrB_2014-07-11.pdf for more details on TTL input/output.

• The ADV748x features an 8-bit bidirectional TTL input/output port which does not support any external sync signals. 
• Since there is a single 8-bit TTL port on the ADV748x, it is not possible to simultaneously use the port in input and output modes. 
• When configured as an output, the TTL port supports output from either the SDP or the combination of the HDMI/MHL and CP blocks. 
• When configured as an input, the TTL port allows data to be routed to the 4-lane MIPI CSI-2 Tx.

Also note that on ADV7480, ADV7481 and ADV7482, it is not possible to simultaneously output data on the TTL output interface while outputting data on any of the MIPI CSI-2 transmitters.

But ADV7481 and ADV7482 can output data on CSI-TXA and CSI-TXB simultaneously.

Please check the scripts that are available for TTL at ADV7480 Required Settings

##06 TTL Input Scripts - 8-Bit_SDR - MIPI Output##

:06-01 8-Bit SDR TTL to MIPI TX-A CSI 1-Lane - 480i,576i,480p,576p - YUV422 8-Bit:

Kindly share us the response you’re getting by considering the above information.

Thanks,
Dharani S