How to find the I2C (register/sub address) in HDMI TDA19988 IC datasheet?

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How to find the I2C (register/sub address) in HDMI TDA19988 IC datasheet?

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venkatesan_rose
Contributor II

Hello sir,

I am using HDMI transmitter(TDA19988BHN/C1,557) IC ,

i am trying to enable the HDMI Transmitter I2C pin(CSCL,CSDA) but cant find any I2C (Register/sub address)  in HDMI Transmitter (TDA19988BHN/C1,557)  IC data sheet.

AD.PNG

above detail only available.

Please let me there are way to find the Specific Register and Sub address 

Thanks

Venkat R


					
				
			
			
				
			
			
				
			
			
			
			
			
			
		
5 Replies

1,405 Views
reyes
NXP TechSupport
NXP TechSupport

I have sent you an answer in private using your NXP Ticket # 00254614

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venkatesan_rose
Contributor II

hi jose,

we tried with given  slave address but my device not responding in my design schematic 

we are using TDA19988BHN device in that we left open these two pins (A0_i2c,A1_i2c).

Please share your inputs whether A0_I2C & A1_I2C can be left open, if yes, please share the slave address of TDA19988 in case of these two pins are left open. We tried with all the possible options with 00, 01, 10, 11 in place of A0_I2C & A1_I2C, but device is not responding.

Please find here with attached schematic design of TDA19988BHN for your review. Please review and share your inputs.TDA19988_Sch.JPG

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reyes
NXP TechSupport
NXP TechSupport

Hi Venkatesan,

 

Pins A0_i2c,A1_i2c should not be left open.

 

Slave address for CEC and HDMI are defined as in the following image:TDA19988 address.png

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venkatesan_rose
Contributor II

Hello sir  i need  TDA19988BHN/C1,557 IC Sub address.

1,381 Views
gomados
Contributor II

Hi venkatesan_rose

Any luck with registers? im in the same siituation!

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