T1042 DDR4 ALERT Query

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T1042 DDR4 ALERT Query

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gokulkrishnan
Contributor III

Hello,

I am using a DDR4 x32 configuration with a single x8 ECC chip. There are 3 Alert signals from the DDR chips. There is only one MAPAR_ERR_B pin. So how should I connect it? Please advise. 

Regards 

Gokul

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ufedor
NXP Employee
NXP Employee

The DDR4 chip ALERT signal is open-drain, so all ALERT signals have to be connected together and pulled up to GVDD through 4.7-10 kOhm.

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