IPR-HPMCII Altera, IPR-HPMCII Datasheet - Page 101
![IP CORE Renewal Of IP-HPMCII](/photos/24/19/241941/4696148_sml.jpg)
IPR-HPMCII
Manufacturer Part Number
IPR-HPMCII
Description
IP CORE Renewal Of IP-HPMCII
Manufacturer
Altera
Datasheet
1.IP-HPMCII.pdf
(176 pages)
Specifications of IPR-HPMCII
Software Application
IP CORE, Memory Controllers, SDRAM
Supported Families
Arria II GX, HardCopy III, Stratix III, Stratix IV
Core Architecture
FPGA
Core Sub-architecture
Arria, HardCopy, Stratix
Rohs Compliant
NA
Lead Free Status / RoHS Status
na
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Chapter 6: Functional Description—High-Performance Controller
Block Description
December 2010 Altera Corporation
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The ECC logic can instantiate multiple encoders, each running in parallel, to encode
any width of data words assuming they are integer multiples of 64.
The ECC logic operates between the local (native or Avalon-MM interface) and the
memory controller.
The ECC logic has an N × 64-bit (where N is an integer) wide interface, between the
local interface and the ECC logic, for receiving and returning data from the local
interface. This interface can be a native interface or an Avalon-MM slave interface,
you select the type of interface in the parameter editor.
The ECC logic has a second interface between the local interface and the ECC, which
is a 32-bit wide Avalon-MM slave to control and report the status of the operation of
the ECC controller.
The encoded data from the ECC logic is sent to the memory controller using a N ×
72-bit wide Avalon-MM master interface, which is between the ECC logic and the
memory controller.
When testing the DDR3 SDRAM HPC, you can turn off the ECC.
The ECC controller—controls multiple encoder and decoder-correctors, so that the
ECC can handle different bus widths. Also, it controls the following functions of
the encoder and decoder-corrector:
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Interrupts:
Configuration registers:
Status registers:
Error signal—an error signal corresponding to the data word is provided with
the data and goes high if a double-bit error that cannot be corrected occurs in
the return data word.
Counters:
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Detected and corrected single-bit error
Detected double-bit error
Single-bit error counter threshold exceeded
Double-bit error counter threshold exceeded
Single-bit error detection counter threshold
Double-bit error detection counter threshold
Capture status for first encountered error or most recent error
Enable deliberate corruption of ECC for test purposes
Error address
Error type: single-bit error or double-bit error
Respective byte error ECC syndrome
Detected and/or corrected single-bit errors
Detected double-bit errors
Section II. DDR3 SDRAM Controller with ALTMEMPHY IP User Guide
External Memory Interface Handbook Volume 3
6–7
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