DK-DEV-4SGX230N Altera, DK-DEV-4SGX230N Datasheet - Page 384

• Manufacturer Part Number: DK-DEV-4SGX230N
• Description: KIT DEVELOPMENT STRATIX IV
• Manufacturer: Altera
• Series: Stratix® IVr
• Type: FPGAr

Specifications of DK-DEV-4SGX230N

• Contents: Development Board, Universal Power Supply, Cables and Software
• Silicon Manufacturer: Altera
• Core Architecture: FPGA
• Core Sub-architecture: Stratix
• Silicon Core Number: EP4S
• Silicon Family Name: Stratix IV GX
• Rohs Compliant: Yes
• For Use With/related Products: EP4SGX230K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 544-2594

10–50
Remote System Upgrades
Stratix IV Device Handbook Volume 1
When multiple Stratix IV devices are cascaded, you can selectively enable the
compression feature for each device in the chain if you are using a serial configuration
scheme.
device has compression enabled; therefore, receives a compressed bitstream from the
configuration device. The second Stratix IV device has the compression feature
disabled and receives uncompressed data.
In a multi-device FPP configuration chain (with a MAX II device or microprocessor +
flash), all Stratix IV devices in the chain must either enable or disable the
decompression feature. You cannot selectively enable the compression feature for
each device in the chain because of the DATA and DCLK relationship.
Figure 10–20. Compressed and Uncompressed Configuration Data in the Same Configuration File
You can generate programming files for this setup by clicking Convert Programming
Files on the File menu in the Quartus II software.
This section describes the functionality and implementation of the dedicated remote
system upgrade circuitry. It also defines several concepts related to remote system
upgrade, including factory configuration, application configuration, remote update
mode, and user watchdog timer. Additionally, this section provides design guidelines
for implementing remote system upgrades with the supported configuration
schemes.
System designers sometimes face challenges such as shortened design cycles,
evolving standards, and system deployments in remote locations. Stratix IV devices
help overcome these challenges with their inherent reprogrammability and dedicated
circuitry to perform remote system upgrades. Remote system upgrades help deliver
feature enhancements and bug fixes without costly recalls, reduce time-to-market,
extend product life, and avoid system downtime.
Stratix IV devices feature dedicated remote system upgrade circuitry. Soft logic (either
the Nios
download a new configuration image from a remote location, store it in configuration
memory, and direct the dedicated remote system upgrade circuitry to initiate a
reconfiguration cycle. The dedicated circuitry performs error detection during and
after the configuration process, recovers from any error condition by reverting back to
a safe configuration image, and provides error status information.
®
Figure 10–20
II embedded processor or user logic) implemented in a Stratix IV device can
GND
Configuration
Compressed
Data
Chapter 10: Configuration, Design Security, and Remote System Upgrades in Stratix IV Devices
nCE
Decompression
Controller
Stratix IV
Device
shows a chain of two Stratix IV devices. The first Stratix IV
nCEO
Uncompressed
Configuration
Data
nCE
Stratix IV
Device
Serial Configuration Data
nCEO
N.C.
Serial Configuration
April 2011 Altera Corporation
Device
Remote System Upgrades