LayerscapeのトピックLS1028A new design without CPLD

LS1028A new design without CPLD

mkraj — Thu, 15 Jun 2023 10:28:21 GMT

Dear NXP expert

We are planning to go for a new LS1028A based board design without CPLD. We want to implement all reset and control outside CPLD.

Is there any dependency on firmware? Is it mandatory to use CPLD?

Thank you

With Regards

Re: LS1028A new design without CPLD

mrudangshelat-13 — Fri, 16 Jun 2023 06:36:30 GMT

Hi @mkraj,

You can design a board using LS1028A without CPLD. You can refer to LS1046A FRWY schematic design for implementing the RESET circuitary without using CPLD.

Regards,
Mrudang

Re: LS1028A new design without CPLD

mkraj — Fri, 16 Jun 2023 06:54:02 GMT

Dear Mrudang

Thank you verymuch for your valuable reply.

1. In LS1028A RDB , Few registers are implemented (board control and status register) in CPLD.

If we are removing CPLD, Any major software change is required?

2. Is it ok to go without these BCSR - Board Control / Status Registers in CPLD?

With Regards

Krishnam Raju M