EP4SE530H40I3 Altera, EP4SE530H40I3 Datasheet - Page 63

• Manufacturer Part Number: EP4SE530H40I3
• Description: IC STRATIX IV FPGA 530K 1517HBGA
• Manufacturer: Altera
• Series: STRATIX® IV Er

Specifications of EP4SE530H40I3

• Number Of Logic Elements/cells: 531200
• Number Of Labs/clbs: 21248
• Total Ram Bits: 27376
• Number Of I /o: 976
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 1517-HBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Chapter 3: TriMatrix Embedded Memory Blocks in Stratix IV Devices
Overview
February 2011 Altera Corporation
Error Correction Code (ECC) Support
1
1
Stratix IV M144K blocks have built-in support for error correction code (ECC) when in
×64-wide simple dual-port mode. ECC allows you to detect and correct data errors in
the memory array. The M144K blocks have a single-error-correction
double-error-detection (SECDED) implementation. SECDED can detect and fix a
single bit error in a 64-bit word, or detect two bit errors in a 64-bit word. It cannot
detect three or more errors.
The M144K ECC status is communicated using a three-bit status flag
eccstatus[2..0]. The status flag can be either registered or unregistered. When
registered, it uses the same clock and asynchronous clear signals as the output
registers. When unregistered, it cannot be asynchronously cleared.
Table 3–3
Table 3–3. Truth Table for ECC Status Flags
You cannot use the byte enable feature when ECC is engaged.
Read-during-write “old data mode” is not supported when ECC is engaged.
No error
Single error and fixed
Double error and no fix
Illegal
Illegal
Illegal
Illegal
lists the truth table for the ECC status flags.
Status
eccstatus[2]
0
0
1
0
0
1
1
eccstatus[1]
0
1
0
0
1
0
1
Stratix IV Device Handbook Volume 1
eccstatus[0]
0
1
1
1
0
0
X
3–7