stratix10MX developer Kit HBM2 channel address renge

Hi,

Good news! I have an update for you.

The HBM device has 2 type.

• 4GB/4H refers to HBM2 device with a total device density of 4GB in a 4-high Stack,
• 8GB8H refers to a total HBM2 device density of 8GB in an 8-high Stack.

Can you confirm which type are you referring to. Assuming it is 8GB type with 8-high stack:

• In 8GB type, it consist of 8 channel which each channel is divided by two pseudo-channels.
• 8GB is the total capacity of 8 channel. Thus, each channel can support 1GB and each pseudo-channels can support 512MB.

To answer your questions:

1. And can each channel access all HBM address 4GByte? -- No, 4GB is the total density of 4 channels (if you are referring to 4GB4H device type)
2. I concern about each channel have an access limit 512MByte .-- If this is referring to each pseudo-channels, then yes, it can access limit 512MB.

I sincerely hope this helps.

Thanks.

Regards,

Aida