Features, Features -2, Table 4-1. mcecc functions on the petra asic -2 – Motorola MVME1X7P User Manual

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4-2

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MCECC Functions

4

Features

MCECC functions now implemented on the Petra chip include:

Table 4-1. MCECC Functions on the Petra ASIC

Function

Features

Memory Control

2-1-1-1 memory accesses (sustained) for burst writes

4-1-1-1 memory accesses (sustained) for burst reads (5-1-1-1 with BERR
on or when FSTRD is cleared)

Support for byte, two-byte, four-byte, and cache line read or write transfers

Programmable base address for DRAM

Built-in refresh timer and refresh controller

Programmable-period automatic scrub operation

Error Handling

ECC Single-Bit Error Detect and Correct

Software-enabled Interrupt on Single-Bit Error

Double-Bit Error Detect

Software-programmable Bus Error and/or Interrupt on double-bit error

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