Apr 16, 2022 · One of the biggest changes for RAS in HBM3 is how error correcting code (ECC) is handled. Let’s start by examining the host side of ECC. HBM2E provides an option for the host to enable a sideband ECC implementation by allowing the DM signal to be repurposed as an ECC storage location.

May 22, 2024 · When referring to ECC errors in this application note, we focus on uncorrectable high bandwidth memory (HBM) memory errors. SRAM failure modes are discussed in RMA Policy Thresholds for SRAM Failure Modes.

May 7, 2024 · This article describes the process of injecting ECC errors in Versal HBM devices and checking the ECC status registers. This demonstration uses the VHK158 Versal HBM Series Evaluation Kit which has an XCVH1582 device with dual stacks of …

Oct 19, 2020 · By generating ECC SECDED (Single-bit Error Correction and Double-bit Error Detection) codes for the actual data and storing them in additional DRAM storage, the DDR controller can correct single-bit errors and detect double-bit errors on the received data from the DRAMs. The ECC generation and check sequence is as follows:

The HBM Memory Controller IP is highly efficient, highly configurable single channel memory controller which with its ‘2-command compare and issue’ algorithm reduces number of dead cycles and increases data transfer with HBM memory to achieve high bandwidth.

Optional data error correcting code (ECC) support per channel. One differential clock for commands, address, and data. (Unlike GDDR5(X), which has half rate clocks for commands and addresses.)

In order to improve reliability, a fully parallel Reed-Solomon (RS) encoder/decoder with the double-sub-engine architecture is proposed for the on-die ECC implementation where the symbol-wise interleaver/de-interleaver can provide significantly strong and …

Nov 13, 2024 · In the event of an ECC error, it will be logged and optionally an interrupt will be triggered. Reads that are correctable will be corrected with no impact to performance. The HBM Controller can be configured to write back corrected values to …

Oct 31, 2023 · Currently the HBM IP GUI will allow the user to enable ECC Bypass and Write Data Mask. At the HBM interface, there is a single multi-purpose pin which operates as either the Write/Read ECC DQ bit or the output only Write Data Mask signal.

A novel method is proposed that utilizes zero parts in DQ-data as ECC check bits and uses metadata as flags to indicate zero-part locations for improved ECC reliability. This method also …