While designing DDR4 SODDIM schematic for a mini-pc motherboard, I understood that I need to set an address to Serial Presence Detect (SPD) EEPROM so the CPU can identify the memory.
While looking at a previous design at a project in my company, I noticed that 3 pull down resistors are equal to the address A0. and someone wrote (0x50).
(NOP means Not Populated Resistor)
I'm trying to understand how to find these addresses and the conversion between (0x50) to A0 and vice versa.
looking at this article, I found this table:
I'm not sure if this is relevant. personally I didn't get from it any information that I can link to the previous image. but I thought it could help the answer.
regarding the last answers, I still don't understand how these addresses correspond with the outside resistors. actually I want to validate that the addresses are right. here is another example which makes the confusion, this image for the second SODDIMM slot in the design: