ECC Core Signals - ECC Core Signals - 2.0 English - PG092

ECC LogiCORE IP Product Guide (PG092)
Document_ID
PG092
Release_Date
2026-07-22
Version
2.0 English

The following table details the ECC core signals.

Table 1. ECC Core Signals
Port Name I/O Description
ecc_data_in[C_DATA_WIDTH -1:0] I Data Input. For generating check bits or protection bits. The valid range for input data width is from 4 to 128 bits.
ecc_data_out[C_DATA_WIDTH -1:0] O Data Output. The valid range for output data width is from 4 to 128 bits.
  • Encoder Mode: Data Output with the associated check bits after encoding operation
  • Decoder Mode: Data Output after decoding operations, corrected for any single bit errors
  • Encoder/Decoder Mode: When ecc_encode is asserted High, provides Data Output with the associated check bits. When ecc_encode is de-asserted, provides Data Output, corrected for any single bit errors
ecc_chkbits_in[C_CHK_BIT_WIDTH -1:0] I Input Check Bits. Applicable for decoder and encoder/decoder modes of operation. The valid range for check bit width is from 4 to 9 bits. Refer to Table 4-1 for minimum number of check bits required for the configured data width.
  • Decoder Mode: Input check bits for error analysis over the associated data
  • Encoder/Decoder Mode: Ignored when ecc_encode is asserted High
ecc_chkbits_out[C_CHK_BIT_WIDTH-1:0] O Output Check Bits/Syndrome. Encoder and Encoder/Decoder modes only. The valid range for check bit width is from 4 to 9 bits. Refer to Table 4-1 for minimum number of check bits required for the configured data width.
  • Encoder Mode: Provides calculated check bits
  • Encoder/Decoder Mode: When ecc_encode is asserted High, provides calculated check bits
ecc_correct_n I Disable Error Correction. Applicable for decoder and encoder/decoder mode of operation. When asserted High, suppresses single bit error correction in the data.
ecc_sbit_err O Single-Bit Error. Applicable for decoder and encoder/decoder modes of operation. When asserted High, flags the presence of a single-bit error in data which has been auto-corrected during ECC decoder operations.
ecc_dbit_err O Double-Bit Error. Applicable for decoder and encoder/decoder modes of operation. When asserted High, flags the presence of a double-bit error in data.
ecc_encode I Encoder Enable. Applicable for only encoder/decoder mode of operation. When asserted High, the core performs encoding operations. When ecc_encode is de-asserted, the core performs decoding and/or error correction operations.