EP2S180F1020C4 Datasheet, PDF (664/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

Functional Description
Figure 8–2 shows the block diagrams for implementing remote system
upgrade with the various Stratix II and Stratix II GX configuration
schemes.
Figure 8–2. Remote System Upgrade Block Diagrams for Various Stratix II and Stratix II GS Configuration
Schemes
MAX II Device &
Flash Memory
Stratix II/Stratix II GX
Device
External Processor &
Flash Memory
Stratix II/Stratix II GX
Device
Serial
Configuration
Device
Stratix II/Stratix II GX
Device
Enhanced
Configuration
Device
Stratix II Device
Nios Processor
or User Logic
Nios Processor
or User Logic
Nios Processor
or User Logic
Flash
Memory
MAX II
Device
Processor
Flash Memory
Serial
Configuration
Device
Enhanced
Configuration
Device
1 For the active serial configuration scheme, the remote system
upgrade only supports single device configurations.
You must set the mode select pins (MSEL[3..0]) and the RUnLU pin to
select the configuration scheme and remote system upgrade mode best
suited for your system. Table 8–1 lists the pin settings for Stratix II and
Stratix II GX FPGAs. Standard configuration mode refers to normal FPGA
configuration mode with no support for remote system upgrades, and the
remote system upgrade circuitry is disabled. The following sections
describe the local update and remote update remote system upgrade
modes.
8–4
Stratix II Device Handbook, Volume 2
Altera Corporation
January 2008