US 2026/0228014 A1 · READ-ONLY MEMORY BANK FOR STORING BOOTUP CODE

Abstract

Methods, systems, and devices for a read-only memory (ROM) bank for storing bootup code are described. A dynamic random-access memory (DRAM) device may implement at least a portion of non-volatile memory within the DRAM device for storing bootup code and/or program code. Accordingly, a host system may, upon powering on the DRAM device, directly access the bootup code and/or program code from the portion of non-volatile memory in the DRAM device. In some examples, the portion of non-volatile memory may be a mask programmable bank from a set of banks or be an electrical programmable bank. Additionally, the portion of the non-volatile memory in the DRAM device may be implemented in under-array circuitry separate from a DRAM memory array, in a separate extra array beside the DRAM array, or in a separate die electrically coupled with the DRAM memory through silicon vias or other interconnects.

Claims20

Dependent claims

A memory system, comprising:

one or more random access devices each including a dynamic random access (DRAM) bank and a random access read only (ROM) bank;
and
processing circuitry coupled with the one or more random access devices, the processing circuitry configured to cause the memory system to:
power on the one or more random access devices;
execute a device initialization procedure based at least in part on powering on the one or more random access devices;
access a portion of program code that is stored within the ROM banks of the one or more random access devices based at least in part on execution of the device initialization procedure;
and
execute a first level of a system boot procedure using the portion of the program code.

5 more elements

A memory system, comprising:

a random-access memory device comprising a first portion of non-volatile memory and a second portion of volatile memory;
and
processing circuitry coupled with the random-access memory device and configured to cause the memory system to:
power on the memory system;
access, based at least in part on powering on the memory system, bootup code associated with a bootup procedure of the memory system, wherein the bootup code is stored in the first portion of non-volatile memory;
and
perform one or more operations associated with the bootup procedure based at least in part on accessing the bootup code from the first portion of non-volatile memory.

4 more elements

Dependencies are inferred from the claim text.

Read-only memory bank for storing bootup code

Life of this patent

Read-only memory bank for storing bootup code

Life of this patent

Abstract

Claims20