EP4SE360F35I4 Datasheet, PDF (388/432 Pages) Altera Corporation – This section provides a complete overview of all features relating to the Stratix IV device family, which is the most architecturlly advanced

10–52
Chapter 10: Configuration, Design Security, and Remote System Upgrades in Stratix IV Devices
Remote System Upgrades
Figure 10–21 shows the steps required for performing remote configuration updates.
(The numbers in Figure 10–21 coincide with the steps just mentioned.)
Figure 10–21. Functional Diagram of Stratix IV Remote System Upgrade
1
Development
Location
Data
Data
Data
Stratix IV
Device
Control Module
2
Configuration
Memory
Stratix IV Configuration
3
Figure 10–22 shows a block diagram for implementing a remote system upgrade with
the Stratix IV fast AS configuration scheme.
Figure 10–22. Remote System Upgrade Block Diagram for Stratix IV Fast AS Configuration
Scheme
Stratix IV
Device
Nios II Processor
or User Logic
Serial
Configuration
Device
You must set the mode select pins (MSEL[2..0]) to fast AS mode to use remote system
upgrade in your system. Table 10–13 lists the MSEL pin settings for Stratix IV devices in
standard configuration mode and remote system upgrade mode. The following
sections describe remote update of the remote system upgrade mode.
For more information about standard configuration schemes supported in Stratix IV
devices, refer to “Configuration Schemes” on page 10–2.
Table 10–13. Remote System Upgrade Modes in Stratix IV Devices
Configuration Scheme
MSEL[2..0]
Remote System Upgrade Mode
Fast AS (40 MHz)
011
Standard
011
Remote update (1)
Note to Table 10–13:
(1) All EPCS densities are able to support DCLK up to 40 MHz, but batches of EPCS1 and EPCS4 manufactured on
0.18-m process geometry can only support DCLK up to 20 MHz. For more information, refer to the Serial
Configuration Devices (EPCS1, EPCS4, EPCS16, EPCS64, and EPCS128) Data Sheet chapter in volume 2 of the
Configuration Handbook.
Stratix IV Device Handbook
Volume 1
September 2012 Altera Corporation