Crc_Error Pin; Error Detection Registers - Altera Cyclone V Device Handbook

CV-52008
2013.11.12
3. In the Category list, click Error Detection CRC.
4. Turn on Enable Error Detection CRC_ERROR pin.
5. To set the
off this option sets the
6. In the Divide error check frequency by list, select a valid divisor.
7. Click OK.

CRC_ERROR Pin

Table 8-4: Pin Description
Pin Name
CRC_ERROR

Error Detection Registers

This section describes the registers used in user mode.
Figure 8-2: Block Diagram for Error Detection in User Mode
The block diagram shows the registers and data flow in user mode.
SEU Mitigation for Cyclone V Devices
Send Feedback
pin as output open drain, turn on Enable open drain on CRC_ERROR pin. Turning
CRC_ERROR
CRC_ERROR
Pin Type
I/O or output/
output open-drain
Readback
Bitstream with
Error
Expected CRC
Control
Detection
Signals
State
Machine
Error Injection
Block
Fault
Injection
Register
JTAG
Fault
Injection
Register
pin as output.
An active-high signal, when driven high indicates that an
error is detected in the CRAM bits. This pin is only used
when you enable error detection in user mode. Otherwise,
the pin is used as a user I/O pin.
When using the WYSIWYG function, you can route the
port from the WYSIWYG atom to the dedicated
crcerror
pin or any user I/O pin. To route the
CRC_ERROR
port to a user I/O pin, insert a D-type flipflop between
them.
32-bit Error Detection
CRC Calculation and
Error Search Engine
Error
Message
Register
JTAG User
Update Update
Register Register
JTAG User
Shift Shift
Register Register
JTAG TDO General Routing
CRC_ERROR Pin
Description
Syndrome
Register
CRC_ERROR
8-5
crcerror
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